awesome-cpp

A collection of classes and functions, which are written in the core language and part of the C++ ISO Standard itself

The Standard Template Library (STL)

A specification of a C standard library for POSIX systems

ISO/IEC JTC1/SC22/WG21 - The C++ Standards Committee

The purpose of this manual is to tell you how to use the facilities of the GNU C Library

abseil-cpp

Abseil C++ Common Libraries. [Apache2]

STDCXX, A collection of algorithms, containers, iterators, and other fundamental components. [retired] [Apache2]

Apache Portable Runtime. Another library of cross-platform utility functions. [Apache2]

Adobe Source Libraries provides peer-reviewed and portable C++ source libraries. [MIT]

A large collection of generic C++ libraries. [Boost]

BDE

The BDE Development Environment from Bloomberg Labs. [Apache2]

C++ Workflow

C++ Parallel Computing and Asynchronous Networking Engine. [Apache2]

CGraph

A cross-platform DAG framework based on C++ without any 3rd-party. [MIT]

A community-developed, free and open source library for professional-quality creative coding. [BSD]

Coost

A tiny boost library in C++11. [MIT]

A small, header-only library that backports various facilities from more recent C++ Standards to C++03 and later. [MIT]

Dlib

A toolkit for making real world machine learning and data analysis applications in C++. [Boost]

EASTL

Electronic Arts Standard Template Library. [BSD]

ETL

Embedded Template Library. [MIT]

ffead-cpp

Framework for Enterprise Application Development. [Apache2]

Folly

An open-source C++ library developed and used at Facebook. [Apache2]

FunctionalPlus

Functional Programming Library for C++. Write concise and readable C++ code. [MIT]

GLib provides the core application building blocks for libraries and applications written in C. [LGPL]

itlib

A collection of std-like single-header C++ libraries [MIT]

JUCE

An all-encompassing C++ class library for developing cross-platform software. [Core-Module: ISC, Rest: GPL2/GPL3/Proprietary]

Kigs framework

A free and open source C++ modular multi-purpose cross platform RAD framework. [MIT]

libPhenom

libPhenom is an eventing framework for building high performance and high scalability systems in C. [Apache2]

LibSourcey

C++11 evented IO for real-time video streaming and high performance networking applications. [LGPL]

LibU

A multiplatform utility library written in C. [BSD]

libxutils

Simple and yet powerful cross-platform C library providing data structures, algorithms and much more. [MIT]

A C++ library of designs, containing flexible implementations of common design patterns and idioms. [MIT]

MiLi

Minimal headers-only C++ Library. [Boost]

OpenFrameworks

A cross platform open source toolkit for creative coding in C++. [MIT]

A cross-platform application and UI framework. [GPL/LGPL/Proprietary]

A cross platform framework designed to bring the ease of use of Java, .Net, or Python to developers who require the performance and strength of C++. [GPL2]

A set of OO frameworks with all the functionality needed to handle and analyze large amounts of data in a very efficient way. Used at CERN. [LGPL]

rpp

Minimal Rust-inspired C++20 STL replacement. [MIT]

SaneCppLibraries

a set of C++ platform abstraction libraries for macOS, Windows and Linux. [MIT]

Seastar

An advanced, open-source C++ framework for high-performance server applications on modern hardware. [Apache-2.0 License]

An exemplary version of STL. [Free]

Standard Template Library for Extra Large Data Sets. [Boost]

tbox

A glib-like multi-platform c library. [Apache2]

A C++ cross-platform rapid application development framework. [BSD]

A C++ library for developing Windows applications and UI components. [Public]

Yomm2

Fast, Orthogonal, Open multi-methods. Supersedes [Boost]

ANNetGPGPU

A GPU (CUDA) based Artificial Neural Network library. [LGPL]

btsk

Game Behavior Tree Starter Kit. [zlib]

A template-based, ANSI-C++ evolutionary computation library which helps you to write your own stochastic optimization algorithms insanely fast. [LGPL]

frugally-deep

Header-only library for using Keras models in C++. [MIT]

Genann

Simple neural network library in C. [zlib]

MXNet

Lightweight, Portable, Flexible Distributed/Mobile Deep Learning with Dynamic, Mutation-aware Dataflow Dep Scheduler; for Python, R, Julia, Scala, Go, JavaScript and more

PyTorch

Tensors and Dynamic neural networks in Python with strong GPU acceleration

flashlight

Flashlight is a fast, flexible machine learning library written entirely in C++. [BSD]

Recast/Detour

(3D) Navigation mesh generator and pathfinder, mostly for games. [zlib]

TensorFlow

An open source software library for numerical computation using data flow graphs. [Apache]

oneDNN

An open-source cross-platform performance library for deep learning applications. [Apache]

CNTK

Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit. [Boost]

tiny-dnn

A header only, dependency-free deep learning framework in C++11. [BSD]

Veles

Distributed platform for rapid Deep learning application development. [Apache]

Kaldi

Toolkit for speech recognition. [Apache]

Asio

A cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach. [Boost]

Boost.Asio

A cross-platform C++ library for network and low-level I/O programming. [Boost]

C++ Actor Framework

An Open Source Implementation of the Actor Model in C++. [BSD-3-Clause]

Ichor

An event queue which focuses on thread safety and provides dependency injection. [MIT]

A full-featured and high-performance event loop that is loosely modelled after libevent, but without its limitations and bugs. [BSD and GPL]

An event notification library. [BSD]

libhv

Cross-platform event loop library. [BSD]

libuv

Cross-platform asynchronous I/O. [BSD]

promise-cpp

Header only library that implements Promise/A+ standard. [Anti-996]

uvw

C++ wrapper for libuv. [MIT]

uv-cpp

a simple interface, high-performance network library based on C++11. [MIT]

Amplitude Audio SDK

A cross-platform audio engine designed with the needs of games in mind. [Apache-2.0]

Aubio

A library for audio and music analysis.[GPL-3.0]

AudioFile

A simple C++ library for reading and writing audio files. [MIT]

audioFlux

A C library for audio and music analysis, feature extraction. [MIT]

dr_libs

Single file audio decoding libraries for C and C++. [Unlicense]

An easy to use crossplatform audio engine and audio content creation tool for games. [Free for non-commercial/Commercial]

Fast, modern C++ DSP framework, FFT, FIR/IIR filters, Sample Rate Conversion. [GPL/Proprietary]

LAME is a high quality MPEG Audio Layer III (MP3) encoder. [LGPL]

libsndfile

C library with C++ wrapper for reading and writing files containing sampled sound through one standard library interface. [LGPL-2.1]

libsoundio

C library for cross-platform real-time audio input and output. [MIT]

Maximilian

C++ Audio and Music DSP Library. [MIT]

Open Audio Library - A crossplatform audio API. [BSD/LGPL/Proprietary]

miniaudio

Single file audio playback and capture library. [Unlicense]

ni-media

C++ library for reading and writing audio files. [MIT]

A totally open, royalty-free, highly versatile audio codec. [BSD]

PortAudio is a free, cross-platform, open-source, audio I/O library. [MIT]

rnnoise

Recurrent neural network for audio noise reduction. [BSD-3-Clause]

SELA

SimplE Lossless Audio. [MIT]

SoLoud

Easy, portable audio engine for games. [zlib]

A free codec for free speech. Obsoleted by Opus. [BSD]

Tonic

Easy and efficient audio synthesis in C++. [Unlicense]

Ogg Vorbis is a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed audio format. [BSD]

minimp3

Public domain, header-only MP3 decoder with clean-room implementation. [CC0]

Verovio

Verovio is a fast and lightweight music notation engraving library. [LGPL]

Wav2Letter++

Public domain, a fast open source speech processing toolkit written entirely in C++ and uses the ArrayFire tensor library and the flashlight machine learning library for maximum efficiency. [BSD]

C++ Computational Libraries for Bioinformatics. [BSD]

An open source C++ library for the computational simulation of mathematical models developed for physiology and biology. [BSD]

A C++ library for representing and analyzing population genetics data. [GPL]

Algorithms and data structures for the analysis of sequences with the focus on biological data. [BSD/3-clause]

Vcflib

A C++ library for parsing and manipulating VCF files. [MIT]

Wham

Structural variants (SVs) in Genomes by directly applying association tests to BAM files. [MIT]

jech/dht

BitTorrent DHT library in C. [MIT]

libtorrent

(a.k.a. libtorrent-rasterbar) - An efficient feature complete C++ bittorrent implementation. [BSD]

LibTorrent

(a.k.a. libtorrent-rakshasa) - BitTorrent library. [GPL]

libutp

uTorrent Transport Protocol library. [MIT]

d-SEAMS

A molecular dynamics trajectory analysis engine in C++ and Lua with Nix. It is an acronym for Deferred Structural Elucidation Analysis for Molecular Simulations. [GPL]

gromacs

A message-passing parallel molecular dynamics implementation. [GPL]

Reaktoro

A computational framework in C++ and Python for modeling chemically reactive systems. [LGPL]

LAMMPS

A classical molecular dynamics code with a focus on materials modeling. It's an acronym for Large-scale Atomic/Molecular Massively Parallel Simulator. [GPL]

MADNESS

Multiresolution Adaptive Numerical Environment for Scientific Simulation. [GPL]

MPQC

The Massively Parallel Quantum Chemistry program, MPQC, computes properties of atoms and molecules from first principles using the time independent Schrödinger equation. [GPL]

An ab initio quantum chemistry program package that contains modern electronic structure methods. [Academic]

Psi

An ab initio computational chemistry package. [GPL]

Argh!

A minimalist, frustration-free, header-only argument handler. [BSD]

argparse

Argument Parser for Modern C++. [MIT]

args

A simple header-only C++ argument parser library. [MIT]

barkeep

Small C++ header to display async animations, counters, and progress bars. [Apache-2.0]

Boost.Program_options

A library to obtain program options via conventional methods such as command line and config file. [Boost]

cli

A cross-platform header only C++14 library for interactive command line interfaces (Cisco style). [Boost]

CLI11

Header only single or multi-file C++11 library for simple and advanced CLI parsing. [BSD]

clipp

Easy to use, powerful and expressive command line argument handling for C++11/14/17 contained in a single header file. [MIT]

cpp-terminal

Small header only C++ library for writing multiplatform terminal applications. [MIT]

Ctrl+C

Crossplatform C++11 library to handle Ctrl+C event in custom functions. [MIT]

cxxopts

Lightweight C++ command line option parser. [MIT]

docopt.cpp

A library to generate option parser from docstring. [MIT/Boost]

FINAL CUT

Library for creating terminal applications with text-based widgets. [LGPL]

FTXUI

C++ Functional Terminal User Interface. [MIT]

Commandline flags module for C++. [BSD]

imtui

Immediate Mode Text-based User Interface. [MIT]

indicators

Activity indicators for Modern C++. [MIT]

linenoise

A small self-contained alternative to readline and libedit. [BSD-2-Clause]

linenoise-ng

A small, portable GNU readline replacement for Linux, Windows and MacOS which is capable of handling UTF-8 characters. [BSD]

Lyra

A simple to use, composable, command line parser for C++ 11 and beyond. [Boost]

A terminal user interface. [MIT]

oof

Convenient, high-performance RGB color and position control for console output. [MIT]

PDCurses

Public domain curses library with both source code and pre-compiled library available. [PublicDomain]

popl

A single-header templated command line arguments and ini file parser for C++ 11 and beyond. [MIT]

replxx

A readline and libedit replacement that supports UTF-8, syntax highlighting, hints, works on Unix and Windows. [BSD]

tabulate

Table Maker for Modern C++. [MIT]

A mature, stable and feature-rich library for defining and accessing command line arguments in ANSI C++. [MIT]

termbox

A C library for writing text-based user interfaces. [MIT]

TermOx

C++17 Terminal User Interface(TUI) Library. [MIT]

tuibox

A single-header terminal UI (TUI) library, capable of creating mouse-driven, interactive applications on the command line. [MIT]

bit7z

A C++ static library offering a clean and simple interface to the 7-zip shared libraries. [MPL2]

Brotli

Brotli compression format. Developed by Google. [MIT]

A freely available, patent free, high-quality data compressor. [BSD]

bzip3

A better and stronger spiritual successor to BZip2. [LGPL]

FastLZ

Small & portable byte-aligned LZ77 compression. [MIT]

FiniteStateEntropy

New generation entropy codecs : Finite State Entropy and Huff0

heatshrink

data compression library for embedded/real-time systems [ISC]

Kanzi

a modern, modular, portable and efficient lossless data compressor implemented in C++. [Apache-2.0]

A library for creating, reading, writing and manipulating file archives like zip and tar. It also provides transparent compression and decompression of data, using formats like gzip, via a subclass of QIODevice. [LGPL]

libarchive

Multi-format archive and compression library. [New BSD]

LZ4

Extremely Fast Compression algorithm. [BSD]

LZFSE

LZFSE compression library and command line tool. Developed by Apple

Lossless data compression library with a compression ratio similar to LZMA but with much faster decompression. [BSD]

The default and general compression method of 7z format. [PublicDomain]

An extremely fast real-time lossless data compression library. [GPL]

miniz

Single C source file Deflate/Inflate compression library with zlib-compatible API, ZIP archive reading/writing, PNG writing. [MIT]

Minizip

Zlib with latest bug fixes that supports PKWARE disk spanning, AES encryption, and IO buffering. [zlib]

minizip-ng

Fork of the popular zip manipulation library found in the zlib distribution. [zlib]

A library to provide abstract access to various archives. It is intended for use in video games, and the design was somewhat inspired by Quake 3's file subsystem. [zlib]

Rapidgzip

Gzip Decompression and Random Access for Modern Multi-Core Machines. [Apache-2/MIT]

smaz

Small strings compression library. [BSD]

A fast compressor/decompressor. [BSD]

A very compact compression library for data streams. [zlib]

zlib-ng

zlib for the "next generation" systems. Drop-In replacement with some serious optimizations. [zlib]

zstd

Zstandard - Fast real-time compression algorithm. Developed by Facebook. [BSD]

Provides read access on ZIP-archives. [MPL/LGPL]

alpaka

Abstraction library for parallel kernel acceleration. [LGPLv3+]

ArrayFire

A general purpose GPU library. [BSD]

Async++

A lightweight concurrency framework for C++11, inspired by the Microsoft PPL library and the N3428 C++ standard proposal. [MIT]

Boost.Compute

A C++ GPU Computing Library for OpenCL. [Boost]

Bolt

A C++ template library optimized for GPUs. [Apache2]

BS::thread_pool

A fast, lightweight, and easy-to-use C++17 thread pool library [MIT]

Channel

Thread-safe container for sharing data between threads. [MIT]

ck

Concurrency primitives, safe memory reclamation mechanisms and non-blocking data structures. [BSD]

concurrentqueue

A fast multi-producer, multi-consumer lock-free concurrent queue for C++11. [BSD,Boost]

Coros

An easy-to-use and fast library for task-based parallelism, utilizing coroutines. [BSL-1.0]

CUB

CUB provides state-of-the-art, reusable software components for every layer of the CUDA programming mode. [New BSD]

cuda-api-wrappers

Lightweight, Modern-C++ wrappers for the CUDA GPU programming runtime API. [BSD]

cupla

C++ API to run CUDA/C++ on OpenMP, Threads, TBB, ... through Alpaka. [LGPLv3+]

C++React

A reactive programming library for C++11. [Boost]

FiberTaskingLib

Task-based multi-threading library that supports task graphs with arbitrary dependencies. [Apache]

HPX

A general purpose C++ runtime system for parallel and distributed applications of any scale. [Boost]

Intel Games Task Scheduler

A task scheduling framework designed for the needs of game developers. [MIT]

Intel Parallel STL

Intel® implementation of C++17 STL for C++11 and above. [Apache2]

Intel® Threading Building Blocks. [Apache2]

junction

A library of concurrent data structures in C++. [BSD]

Kokkos

A performance portable programming model for parallel execution and memory abstraction. [BSD]

libcds

A C++ library of Concurrent Data Structures. [BSD]

Libclsph

An OpenCL based GPU accelerated SPH fluid simulation library. [MIT]

libdill

Introduces structured concurrency in C. [MIT]

libdispatch

Grand Central Dispatch (GCD), developed by Apple Inc., is a task parallelism technology based on the thread pool pattern. libdispatch is a library that provides the implementation of GCD's services. [Apache-2.0]

libfork

A bleeding-edge, lock-free, wait-free, continuation-stealing tasking library built on C++20's coroutines. [MPL-2.0]

libmill

Introduces Go-style concurrency in C. [MIT]

marl

Marl is a hybrid thread / fiber task scheduler written in C++ 11. [Apache-2.0]

moderngpu

moderngpu is a productivity library for general-purpose computing on GPUs. It is a header-only C++ library written for CUDA. The unique value of the library is in its accelerated primitives for solving irregularly parallel problems. [FreeBSD & Copyright, Sean Baxter]

NCCL

Optimized primitives for collective multi-GPU communication. [BSD]

Neco

Concurrency library for C (coroutines). [MIT]

The open standard for parallel programming of heterogeneous systems

The OpenMP API

rotor

Event loop friendly C++ actor micro framework. [MIT]

SObjectizer

An implementation of Actor, Publish-Subscribe, and CSP models in one rather small C++ framework. [BSD-3-Clause]

Quantum

A powerful C++ coroutine dispatcher framework built on top of

The RaftLib C++ library, streaming/dataflow concurrency via C++ iostream-like operators. [Apache2]

readerwriterqueue

A fast single-producer, single-consumer lock-free queue for C++. [BSD]

stdgpu

Efficient STL-like Data Structures on the GPU. [Apache2]

Taskflow

A General-purpose Parallel and Heterogeneous Task Programming System. (renamed from Cpp-Taskflow) [MIT]

ThreadPool

A simple C++11 Thread Pool implementation [zlib]

A parallel algorithms library which resembles the C++ Standard Template Library (STL). [Apache2]

transwarp

A header-only C++ library for task concurrency. [MIT]

VexCL

A C++ vector expression template library for OpenCL/CUDA. [MIT]

A C++ parallel programming framework designed to work on both shared and distributed memory parallel computers. [BSD]

concurrencpp

A general concurrency library containing tasks, executors, timers and C++20 coroutines to rule them all

inifile-cpp

A header-only and easy to use Ini file parser for C++. [MIT]

inih

Simple .INI file parser in C, good for embedded systems. [BSD-3-Clause]

inih

Single header only C++ version of . [BSD-3-Clause]

ini-cpp

Single header only C++ version, with some handy read/write interface, extend from . [BSD-3-Clause]

iniparser

INI file parser. [MIT]*

inipp

Simple header-only C++ ini parser and generator. [MIT]

libconfig

C, C++ library for processing structured configuration files. [LGPL-2.1]

libconfuse

Small configuration file parser library for C. [ISC]

mINI

INI file reader and writer. [MIT]

simpleini

Cross-platform C++ library providing a simple API to read and write INI-style configuration files. [MIT]

toml++

Header-only TOML parser and serializer for C++17 and later. [MIT]

toml11

a C++11 (or later) header-only toml parser/encoder depending only on C++ standard library. [MIT]

C++ B-tree

A template library that implements ordered in-memory containers based on a B-tree data structure. [Apache2]

dynamic_bitset

Simple Useful Libraries: C++17/20 header-only dynamic bitset. [MIT]

fixed-containers

Header-only C++20 library that provides fixed capacity constexpr containers. [MIT]

flat_hash_map

A very fast flat hashtable with Fibonacci hashing

frozen

a header-only, constexpr alternative to gperf for C++14 users. [Apache-2.0]

Hashmaps

Implementation of open addressing hash table algorithms in C++. [MIT]

hat-trie

C++ implementation of a fast and memory efficient HAT-trie. [MIT]

Hopscotch map

A fast header-only hash map which uses hopscotch hashing for collisions resolution. [MIT]

LSHBOX

A c++ toolbox of locality-sensitive hashing (LSH), provides several popular LSH algorithms, also support Python and MATLAB. [GPL]

parallel-hashmap

A family of header-only, very fast and memory-friendly hashmap and btree containers [Apache2]

PGM-index

A data structure that enables fast lookup, predecessor, range searches and updates in arrays of billions of items using orders of magnitude less space than traditional indexes. [Apache2]

plf::colony

An unordered "bag"-type container which outperforms std containers in high-modification scenarios while maintaining permanent pointers to non-erased elements regardless of insertion/erasure. [zLib]

plf::list

A std::list implementation which removes range splicing in order to enable cache-friendlier structure, yielding significant performance gains. [zLib]

plf::stack

A replacement container for the std::stack container adaptor, with better performance than any std container in a stack context. [zLib]

ring_span lite

A simplified implementation of Arthur O'Dwyer's ring_span implementation ie. a circular buffer view. [MIT]

robin-hood-hashing

Fast & memory efficient hashtable based on robin hood hashing for C++14. [MIT]

robin-map

Fast hash map and hash set using robin hood hashing. [MIT]

sparsepp

A fast, memory efficient hash map for C++. [BSD 3-clause]

st_tree

A fast and flexible c++ template class for tree data structures. [Apache-2.0]

svector

Compact SVO optimized vector for C++17 or higher. [MIT]

tree.hh

An STL-like C++ header-only tree library. [GPL2+]

unordered_dense

A fast & densely stored hashmap and hashset based on robin-hood backward shift deletion. [MIT]

A cross platform file encryption utility. Encrypted files are portable across all supported operating systems and processors. [BSD]

A portable and fast cryptography library. [LGPLv2.1+]

A crypto library for C++. [BSD-2]

Crypto++

A free C++ class library of cryptographic schemes. [Boost]

digestpp

C++11 header-only message digest (hash) library. [PublicDomain]

A complete and free implementation of the OpenPGP standard. [GPL]

A secure communications library implementing the SSL, TLS and DTLS protocols. [LGPL2.1]

A general purpose cryptographic library originally based on code from GnuPG. [LGPLv2.1+]

A free version of the SSL/TLS protocol forked from OpenSSL in 2014. [?]

libsodium

P(ortable|ackageable) NaCl-based crypto library, opinionated and easy to use. [ISC]

libhydrogen

A lightweight, secure, easy-to-use crypto library suitable for constrained environments. [ISC]

LibTomCrypt

A fairly comprehensive, modular and portable cryptographic toolkit. [WTFPL]

mbedTLS

An open source, portable, easy to use, readable and flexible SSL library, previously known as PolarSSL. [Apache2]

A low-level cryptographic library. [LGPL]

OpenSSL

A robust, commercial-grade, full-featured, and Open Source cryptography library. [Apache]

retter

A collection of hash functions, ciphers, tools, libraries, and materials related to cryptography

s2n

An implementation of the TLS/SSL protocols. [Apache]

sha1collisiondetection

Library and command line tool to detect SHA-1 collision in a file. [MIT]

Tink

A multi-language, cross-platform library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse. [Apache-2.0]

Tiny AES in C

Small portable AES128/192/256 in C. [PublicDomain]

Themis

crypto library for painless data security, providing symmetric and asymmetric encryption, secure sockets with forward secrecy, for mobile and server platforms. [Apache2]

HEhub

A library for homomorphic encryption and its applications. [Apache2]

commata

Just another header-only C++17 CSV parser. [Unlicense]

csv2

Fast CSV parser for modern C++. [MIT]

Csv::Parser

Compile-time and runtime CSV parser written in C++17. [Zlib]

Fast C++ CSV Parser

Small, easy-to-use and fast header-only library for reading CSV files. [BSD-3-Clause]

Glaze

High performance, header only, CSV library with reflection support. [MIT]

lazycsv

A fast, lightweight and single-header csv parser for modern C++. [MIT]

ssp

A header only "csv" parser which is fast and versatile with modern C++ api. [MIT]

Vince's CSV Parser

A fast, self-contained, streaming C++17 CSV parser with optional type-casting and statistics. [MIT]

ClickHouse

C++ client for ClickHouse DBMS. [Apache2]

CrossDB

Ultra High-performance Lightweight Embedded and Server OLTP RDBMS. [MPL-2.0]

in-process SQL OLAP Database Management System. [MIT]

hiberlite

C++ Object-relational mapping for sqlite3. [BSD]

Hiredis

A minimalistic C client library for the Redis database. [BSD]

Infinity

The AI-native database built for LLM applications, providing incredibly fast vector and full-text search. [Apache2]

Kuzu

Embeddable property graph database management system built for query speed and scalability. Implements Cypher. [MIT]

Kvrocks

A distributed key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol. [Apache2]

LevelDB

A fast key-value storage library written at Google that provides an ordered mapping from string keys to string values. [BSD]

libpg_query

C library for accessing the PostgreSQL parser outside of the server environment. [BSD-3-Clause]

libpqxx

The official C++ client API for PostgreSQL. [BSD-3-Clause]

Very fast embedded key/value store with full ACID semantics. [OpenLDAP]

LMDB++

C++11 wrapper for the LMDB embedded database library. [PublicDomain]

mgclient

C/C++ Memgraph Client. [Apache2]

MongoDB C Driver

MongoDB client library for C. [Apache2]

MongoDB C++ Driver

C++ driver for MongoDB. [Apache2]

MongoDB Libbson

A BSON utility library. [Apache2]

A C++ wrapper for MySQL's C API. [LGPL]

nanodbc

A small C++ wrapper for the native C ODBC API. [MIT]

An open-source, cross-platform, and cross-database object-relational mapping (ORM) system for C++. [GPLv2]

redis3m

Wrapper of hiredis with clean C++ interface, supporting sentinel and ready to use patterns. [Apache2]

Reindexer

Embeddable, in-memory, document-oriented database with a high-level Query builder interface. [Apache2]

RocksDB

Embedded key-value store for fast storage from facebook. [BSD]

SimDB

High performance, shared memory, lock free, cross platform, single file, minimal dependencies, C++11 key-value store. [Apache2]

SOCI

A database abstraction layer for C++. [Boost]

Speedb

Community-led project: A RocksDB compliant high performance scalable embedded key-value store. [Apache2]

A completely embedded, full-featured relational database in a few 100k that you can include right into your project. [PublicDomain]

SQLiteC++

SQLiteC++ (SQLiteCpp) is a smart and easy to use C++ SQLite3 wrapper. [MIT]

sqlite_modern_cpp

Header only C++14 wrapper around sqlite library. [MIT]

sqlite_orm

SQLite ORM light header only library for modern C++. [AGPL + paid MIT]

sqlpp11

A type safe embedded domain specific language for SQL queries and results in C++. [BSD-2-Clause]

TileDB

Fast Dense and Sparse Multidimensional Array DBMS. [MIT]

TinyORM

Modern C++ ORM library. [MIT]

UnQLite

A self-contained, serverless, zero-configuration, transactional NoSQL engine. [BSD-2-Clause]

An embedded "typed" key/value store with a built-in query interface. [GPLv3]

TigerBeetleDB C++ client (Community)

TigerBeetle is a financial accounting database designed for mission critical safety and performance to power the future of financial services. [BSL-1.0]

Trilogy

a client library for MySQL-compatible database servers, designed for performance, flexibility, and ease of embedding. [MIT]

UStore

Multi-Modal database for BLOBs, JSON, and graphs. [Apache2]

Velox

A C++ vectorized database acceleration library aimed to optimizing query engines and data processing systems. [Apache-2.0]

matplotplusplus

C++ Graphics Library for Data Visualization. [MIT]

backward-cpp

A beautiful stack trace pretty printer for C++. [MIT]

A suite of continuous benchmarking tools designed to catch performance regressions in CI. [MIT]/[Apache2]

benchmark

Google provided small microbenchmark support library. [Apache2]

Boost.Test

Boost Test Library. [Boost]

check

Check is a unit testing framework for C. [LGPL-2.1]

doctest

The lightest feature rich C++ single header testing framework. [MIT]

Catch2

A modern, C++-native, test framework for unit-tests, TDD and BDD. [Boost]

Celero

C++ Benchmarking Framework. [Apache2]

cpp-dump

A C++ library for debugging purposes that can print any variable, even user-defined types. [MIT]

CppUTest

Unit testing and mocking framework for C/C++. [BSD-3-clause]

C++ Unit Testing Easier. [LGPL3]

unit testing framework for C with support for mock objects. [Apache2]

CppBenchmark

Performance benchmark framework for C++ with nanoseconds measure precision. [MIT]

Cpptrace

A simple, portable, and self-contained C++ stacktrace library supporting C++11 and greater. [MIT]

C++ port of JUnit. [LGPL2]

The CMake test driver program. [BSD]

dbg-macro

A dbg(…) macro for C++. [MIT]

DebugViewPP

Debug logging viewer. [Boost]

A tool for resource leak detection, including memory, GDI and handle leaks

FakeIt

Simple mocking framework for C++. [MIT]

fff

A micro-framework for creating fake C functions. [MIT]

Google Mock

A library for writing and using C++ mock classes. [BSD]

Google Test

Google C++ Testing Framework. [BSD]

ig-debugheap

Multiplatform debug heap useful for tracking down memory errors. [BSD]

libassert

The most over-engineered C++ assertion library. [MIT]

libtap

Write tests in C. [GPL2]

microprofile

Profiler with web-view for multiple platforms. [Unlicense]

MinUnit

A minimal unit testing framework for C self-contained in a single header file. [MIT]

Eclipse CDT plug-in for C++ Seams and Mock Objects

nanobench

Simple, fast, accurate single-header microbenchmarking functionality for C++11/14/17/20. [MIT]

Nanotimer

A simple low-overhead cross-platform timer class for benchmarking. [zLib]

Nonius

A C++ micro-benchmarking framework. [CC]

Remotery

Single C File Profiler with Web Viewer. [Apache2]

snitch

Lightweight C++20 testing framework. [Boost]

Touca

Open-source regression testing system that you can self-host. [Apache2]

UnitTest++

A lightweight unit testing framework for C++. [MIT/X Consortium license]

Unity

Simple Unit Testing for C. [MIT]

utest.h

Single header unit testing framework for C and C++. [Unlicense]

μt

C++20 single header/single module, macro-free μ(micro)/Unit Testing Framework. [Boost]

Visual Leak Detector. A free, robust, open-source memory leak detection system for Visual C++

Doxide

Modern documentation for modern C++, configure with YAML, output Markdown. [Apache 2.0]

doxygen

The de facto standard tool for generating documentation from annotated C++ sources. [GPL2]

doxyrest

A compiler from Doxygen XML to reStructuredText for Sphinx. [MIT]

hdoc

The modern documentation tool for C++. [AGPL/Proprietary]

Natural Docs

Natural Docs is an open source documentation generator for multiple programming languages. [AGPL/Proprietary]

Sphinx

Sphinx makes it easy to create intelligent and beautiful documentation. [BSD-2-Clause]

DSPFilters

A collection of useful C++ classes for digital signal processing. [MIT]

A C library for computing the DFT in one or more dimensions. [GPL]

iir1

IIR Realtime C++ filter library. [MIT]

kissfft

A Fast Fourier Transform (FFT) library that tries to Keep it Simple, Stupid. [BSD-3-Clause]

pocketfft

FFT implementation based on FFTPack, but with several improvements. [BSD-3-Clause]

wavelib

C implementation of 1D and 2D wavelet transforms. [BSD-3-Clause]

Font configuration and customization library. [MIT]

FreeType is a freely available software library to render fonts. [FTL & GPLv2]

otfcc

A C library and utility used for parsing and writing OpenType font files. [Apache-2.0]

harfbuzz

A text shaping engine. [Old MIT]

libschrift

A lightweight TrueType font rendering library. [ISC]

Acid

A high speed C++17 Vulkan game engine. [MIT]

A cross-platform library mainly aimed for video games and multimedia programming. [zlib]

Axmol Engine

A cross-platform game engine for desktop, mobile, and XBOX (UWP), derived from Cocos2d-x-4.0. [MIT]

A multi-platform framework for building 2d games, interactive books, demos and other graphical applications. [MIT]

Corange

A game engine written in pure C, SDL and OpenGL. [BSD]

crown

Crown is a general purpose data-driven game engine, written from scratch in orthodox C++ with a minimalistic and data-oriented design philosophy in mind. [MIT]

A robust simulation platform. [LGPL2]

EnTT

Gaming meets modern C++. [MIT]

GamePlay

A cross-platform native C++ game framework for creating 2D/3D mobile and desktop games. [Apache2]

Godot

A fully featured, open source, MIT licensed, game engine. [MIT]

Grit

Community project to build a free game engine for implementing open world 3D games. [MIT]

Halley

A lightweight game engine written in C++14 with a "true" entity-component system. [Apache 2.0]

JNGL

2D library for Linux, Windows, macOS, Android, iOS, Xbox, the Nintendo Switch and the Web. [zlib]

KlayGE

a cross-platform open source game engine with plugin-based architecture. [GPLv2]

nCine

A cross-platform 2D game engine with an emphasis on performance, written in C++11 and optionally scriptable in Lua. [MIT]

o3de

An open-source, real-time, multi-platform 3D engine based on Amazon Lumberyard. [Apache2]

OpenXRay

a community-modified X-Ray engine used in S.T.A.L.K.E.R. game series. [Modified BSD/non-commercial only]

A cross-platform 2D C++ game engine. [MIT]

Panda3D

A game engine, a framework for 3D rendering and game development for Python and C++ programs. [Modified BSD]

PixelGameEngine

The official distribution of olcPixelGameEngine, a tool used in javidx9's YouTube videos and projects. [OLC3]

Polycode

A cross-platform framework for creative code in C++ (with Lua bindings). [MIT]

quakeforge

Actively maintained branch of the original Quake engine code with 20+ years of development. [GPL-2.0]

raylib

A simple and easy-to-use library to enjoy videogames programming. [zlib/libpng]

Spring

A powerful free cross-platform RTS game engine. [GPLv2/GPLv3]

Torque2D

An open-source and cross-platform C++ engine built for 2D game development. [MIT]

Torque3D

An open-source C++ engine built for 3D game development. [MIT]

toy engine

toy is a thin and modular c++ game engine and offers simple expressive c++ idioms to design full featured 2D or 3D games in fast iterations

A free lightweight, cross-platform 2D and 3D game engine implemented in C++. Greatly inspired by OGRE and Horde3D. [MIT]

ezEngine

Is a free, open-source game engine written in C++. Its philosophy is to be modular and flexible, such that it can be adapted to many different use cases. [MIT]

CXXGraph

free C++(17) graph header-only library for representation and algorithms execution. [AGPL-3.0]

Graaf

A general-purpose lightweight C++20 graph library. [MIT]

Boden

Native, mobile, cross-platform GUI Framework. [GPL/LGPL/Proprietary]

Flexible, cross-platform GUI library

Elements

Lightweight, fine-grained, resolution independent, modular GUI library. [MIT]

Fast, light, cross-platform C++ GUI toolkit. [LGPL2]

an open-source, cross-platform widget toolkit. [LGPL]

GacUI

GPU Accelerated C++ User Interface, with WYSIWYG developing tools, XML supports, built-in data binding and MVVM features. [Ms-PL]

A multi-platform toolkit for creating graphical user interfaces. [LGPL]

The official C++ interface for the popular GUI library GTK+. [LGPL]

imgui

Immediate Mode Graphical User Interface with minimal dependencies. [MIT]

implot

Immediate Mode Plotting widgets for imgui. [MIT]

Multi-platform toolkit for building graphical user interfaces. [MIT]

libui

Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports. [MIT]

MyGUI

Fast, flexible and simple GUI. [MIT]

Nana is a cross-platform library for GUI programming in modern C++ style. [Boost]

NanoGui

A minimalistic cross-platform widget library for OpenGL 3.x or higher. [BSD]

nuklear

A single-header ANSI C gui library. [PublicDomain]

Qt plotting widget without further dependencies. [GPLv3]

Qt Widgets for Technical Applications. [Own based on LGPL]

A feature-rich Qt/OpenGL-based C++ programming library, providing essentially a bunch of 3D-widgets. [zlib]

RmlUi

The HTML/CSS User Interface library evolved. Fork of libRocket. [MIT]

Saucer

A modern, cross-platform C++ webview library. [MIT]

Sciter is an embeddable HTML/CSS/scripting engine aimed to be used as an UI layer of modern desktop applications. [Free/Commercial]

Slint

Lightweight GUI toolkit for desktop and embedded. [GPL/Free/Proprietary]

TGUI

Cross-platform modern c++ GUI. [Zlib]

WebUI

Use any web browser as GUI, with your preferred language in the backend and HTML5 in the frontend. [MIT]

wxCharts

A library to create charts in wxWidgets applications. [MIT]

A C++ library that lets developers create applications for Windows, Mac OS X, Linux and other platforms with a single code base. [Own LGPL]

xtd

Modern C++17/20 framework to create console (CLI), forms (GUI like WinForms) and tunit (unit tests like Microsoft Unit Testing Framework) applications on Windows, macOS, Linux, iOS and android. [MIT]

Yue

A library for creating native cross-platform GUI apps. [LGPLv2]

assimp

Open Asset Import Library (assimp) is a cross-platform 3D model import library which aims to provide a common API for different 3D asset file formats. [BSD-3-Clause]

bgfx

A cross-platform rendering library. [BSD]

Blend2D

2D vector graphics engine powered by a JIT compiler. [Zlib]

A 2D graphics library with support for multiple output devices. [LGPL2 or Mozilla MPL]

C-Turtle

A C++11 header-only turtle graphics library acting as a CImg wrapper. [MIT]

Diligent Engine

A modern cross-platform low-level 3D graphics library. [Apache2]

DirectXTK

A collection of helper classes for writing DirectX 11.x code in C++. [MIT]

GLFW

A simple, cross-platform OpenGL wrangling library. [zlib/libpng]

GLFWPP

A thin modern C++17 header-only wrapper for GLFW. [MIT]

Harfang 3D

3D visualization library usable in C++, Python, Lua and Go. Based on BGFX. [GPLv3/LGPLv3/Proprietary]

herebedragons

A basic 3D scene implemented with various engines, frameworks or APIs. [MIT]

Horde3D

A small 3D rendering and animation engine. [EPL]

Ion

A small and efficient set of libraries for building cross-platform client or server applications that use 3D graphics. [Apache2]

A high performance realtime 3D engine written in C++. [zlib]

libigl

Simple C++ geometry processing library. [MPL2]

LLGL

Low Level Graphics Library (LLGL) is a thin abstraction layer for the modern graphics APIs. [BSD-3-Clause]

LunaSVG

a standalone SVG rendering library in C++. [MIT]

magnum

Lightweight and modular C++11/C++14 graphics middleware for games and data visualization. [MIT]

micro-gl

Realtime, Embeddable, Headers Only C++11 CPU vector graphics. no STD lib, no FPU and no GPU required. [CUSTOM]

NanoVG

Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations. [Zlib]

A scene-oriented, real-time, flexible 3D rendering engine (as opposed to a game engine) written in C++. [MIT]

An open source high performance 3D graphics toolkit. [OSGPL]

OpenSubdiv

Pixar's library for evaluating and rendering subdivision surfaces on CPU and GPU. [Modified Apache2]

Library and tools for storing, editing, and rendering volumetric datasets. [MPL2]

A framework for 3D rendering and game development for Python and C++. [BSD]

Partio

Library for wrangling particle data, with support for most common file formats. [Modified BSD]

Skia

A complete 2D graphic library for drawing Text, Geometries, and Images. [BSD]

ThorVG

a platform-independent portable library that allows for drawing vector-based scenes and animations, including SVG and Lottie. [MIT]

TinySpline

A small, yet powerful ANSI C library for interpolating, transforming, and querying arbitrary NURBS, B-Splines, and Bézier curves. [MIT]

urho3d

Cross-platform rendering and game engine. [Many different, mostly MIT]

Yocto/GL

Tiny C++ Libraries for Data-Driven Physically-based Graphics. [MIT]

Boost.GIL

Generic Image Library. [Boost]

BitmapPlusPLus

Simple and Fast header only Bitmap C++ library. [MIT]

A small, open source, C++ toolkit for image processing. [Own LGPL or GPL]

An image processing and conversion library to load, save, display, transform BMP, JPEG, GIF, PNG, TIFF, MNG, ICO, PCX, TGA, WMF, WBMP, JBG, J2K images. [zlib]

Dlib

A modern C++11 machine learning, computer vision, numerical optimization, and deep learning toolkit. [Boost]

fpng

Super fast C++ .PNG writer/reader. [Unlicense]

An open source library that supports popular graphics image formats and others as needed by today's multimedia applications. [GPL2 or GPL3]

GD

GD Graphics Library, famously used in PHP for image loading/manipulation & thumbnail generation. [custom permissive license, requires mention in user docs]

DICOM Toolkit

Grassroots DICOM library

An open-source, cross-platform system for image analysis. [Apache2 from ITK 4.0]

[Jpegli][ - an improved JPEG encoder and decoder implementation. [BSD-3-Clause]

Leptonica

Leptonica is an open source library containing software that is broadly useful for image processing and image analysis applications. [BSD-2-Clause]

libavif

Library for encoding and decoding .avif files. [BSD-2-Clause]

libfacedetection

Open source library for face detection in images. The face detection speed can reach 1500FPS. [BSD]

libjpeg-turbo

A JPEG image codec that uses SIMD instructions to accelerate baseline JPEG encoding and decoding. [IJG & BSD-3-Clause & zlib]

libjxl

JPEG XL image format reference implementation. [BSD-3-Clause]

libpng

the reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. [libpng-2.0]

libspng

Simple, modern libpng alternative. [BSD-2]

libvips

A fast image processing library with low memory needs. [LGPL]

LodePNG

PNG encoder and decoder in C and C++. [Zlib]

ImageMagick program interfaces for C++. [Apache2]

ImageMagick program interfaces for C. [Apache2]

MozJPEG

Improved JPEG encoder. [BSD/BSD-3-Clause/ZLIB]

Open source computer vision. [Apache2]

Cross-platform library for high dynamic range imaging. [Modified BSDF]

OpenImageIO

Powerful image and texture wrangling library with support for a wide number of common lossy and RAW formats. [Modified BSD]

OpenJPEG

an open-source JPEG 2000 codec written in C language. [BSD-2-Clause]

QOI

The “Quite OK Image Format” for fast, lossless image compression. [MIT]

SAIL

Easy-to-use cross-platform image decoding library with pluggable image codecs. [MIT]

Simd

C++ image processing library with using of SIMD: SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, VMX(Altivec) and VSX(Power7), NEON for ARM. [MIT]

stb-image

STB single-header image loading library. [Public Domain]

An OCR engine. [Apache2]

TinyDNG

Header-only Tiny DNG/TIFF loader and writer in C++. [MIT]

TinyEXIF

Tiny ISO-compliant C++ EXIF and XMP parsing library for JPEG. [MIT]

TinyTIFF

lightweight TIFF reader/writer library. [GPL-3.0]

Video++

A C++14 high performance video and image processing library. [MIT]

VIGRA

A generic C++ computer vision library for image analysis. [MIT X11]

Open-source, freely available software system for 3D computer graphics, image processing and visualization. [BSD]

GNU 'gettext'. [GPL2]

A set of C/C++ and Java libraries providing Unicode and Globalization support. [ICU]

An encoding conversion library between different character encodings. [GPL]

simdutf

Unicode routines (UTF8, UTF16, UTF32): billions of characters per second using SSE2, AVX2, NEON, AVX-512. [Apache-2/MIT]

uni-algo

Unicode Algorithms Implementation for C/C++. [Unlicense or MIT]

utf8.h

Single header utf8 string functions for C and C++. [Unlicense]

utf8proc

A clean C library for processing UTF-8 Unicode data. [MIT]

Efficient cross-language IPC/RPC, works between C++, Java, Python, PHP, C#, and many more other languages. Originally developed by Facebook. [Apache2]

Boost.Interprocess

Header-only Boost library that supports kernel-level shared memory and memory-mapped files, with in-built synchronization mechanisms (semaphores, mutexes, and more). [Boost]

bRPC

bRPC is an Industrial-grade RPC framework using C++ Language, which is often used in high performance system such as Search, Storage, Machine learning, Advertisement, Recommendation etc. [Apache2]

Cap'n Proto

Fast data interchange format and capability-based RPC system. [MIT]

eCAL

Pub/sub, client/server, C++/Python/C#, various message protocols (protobuf, capnproto ..). [Apache2]

gRPC

A high performance, open source, general-purpose RPC framework. [BSD]

Ice

Comprehensive RPC framework with support for C++, C#, Java, JavaScript, Python and more. [GPLv2]

iceoryx

True zero-copy inter-process communication framework for safety critical systems with bindings for C, Rust. Runs on Linux, QNX, Windows, Mac OS, FreeBSD. [Apache2]

libjson-rpc-cpp

JSON-RPC framework for C++ servers and clients. [MIT]

nanomsg

A simple high-performance implementation of several "scalability protocols". [MIT]

nng

nanomsg-next-generation, a light-weight brokerless messaging library. [MIT]

rpclib

A modern C++ msgpack-RPC server and client library. [MIT]

simple-rpc-cpp

A simple RPC wrapper generator to C/C++ functions. [BSD]

SRPC

A lightweight RPC system that supports multiple protocols and OpenTelemetry. [Apache2]

Provides RPC and pub/sub messaging patterns. (various implementations, various languages)

A lightweight RPC library based on XML and HTTP. [BSD]

Boost.PropertyTree

A property tree parser/generator that can be used to parse XML/JSON/INI/Info files. [Boost]

cJSON

Ultralightweight JSON parser in ANSI C. [MIT]

DAW JSON Link

Fast, convenient JSON serialization and parsing in C++. [BSL-1.0]

frozen

JSON parser and generator for C/C++. [GPL & GPL2]

Glaze

Extremely fast, in memory, JSON and interface library for modern C++. [MIT]

Jansson

C library for encoding, decoding and manipulating JSON data. [MIT]

jbson

jbson is a library for building & iterating BSON data, and JSON documents in C++14. [Boost]

JeayeSON

A very sane (header only) C++ JSON library. [BSD]

Jsmn

A minimalistic JSON parser in C. [MIT]

json

JSON for Modern C++. [MIT]

JSON++

A JSON parser in C++. [MIT]

json.cpp

a baroque JSON parsing / serialization library for C++. [Apache-2.0]

json.h

A simple one header/one source solution to parsing JSON in C and C++. [Unlicense]

json-build

C89 tiny zero-allocation JSON serializer. [MIT]

json-c

A JSON implementation in C. [MIT]

jsoncons

A C++ header-only library for JSON and JSON-like binary formats with JSONPointer, JSONPatch, JSONPath and JMESPath. [Boost]

JsonCpp

A C++ library for interacting with JSON. [MIT]

Jsonifier

A few classes for parsing and serializing objects from/into JSON - very rapidly. [MIT]

jsonParse

A simple JSON parser in ANSI C. [MIT]

json-parser

Very low footprint JSON parser written in portable ANSI C. [BSD]

json11

A tiny JSON library for C++11. [MIT]

json-struct

High performance, single header JSON parser parsing to and from C++ structs. [MIT]

json-voorhees

JSON library for C++. Support for C++11. No dependencies, fast and dev-friendly. [Apache2]

JSON Toolkit

JSON, JSON Pointer, JSON Schema, and JSONL library for C++20. [AGPL/Commercial]

jute

Very simple C++ JSON Parser. [PublicDomain]

libjson

A JSON parser and printer library in C. easy to integrate with any model. [LGPL]

Lightweight JSON library. [?]

LIBUCL

Universal configuration library parser. [BSD-2-Clause]

parson

Parson is a lighweight json library written in C. [MIT]

PicoJSON

A header-file-only, JSON parser serializer in C++. [BSD]

qt-json

A simple class for parsing JSON data into a QVariant hierarchy and vice versa. [GPLv3]

QJson

A qt-based library that maps JSON data to QVariant objects. [LGPL2]

RapidJSON

A fast JSON parser/generator for C++ with both SAX/DOM style API. [MIT]

sajson

Lightweight, extremely high-performance JSON parser for C++11. [MIT]

simdjson

Extremely fast JSON library that can parse gigabytes of JSON per second. [Apache-2.0]

Sonic-Cpp

A fast JSON serializing & deserializing library, accelerated by SIMD. [Apache-2.0]

taoJSON

Zero-dependency C++ header-only JSON library. [MIT]

µjson is a a small, C++11, UTF-8, JSON library. [MIT]

UltraJSON

Ultra fast JSON decoder and encoder written in C. [BSD-3-Clause]

YAJL

A fast streaming JSON parsing library in C. [ISC]

yyjson

A high performance JSON library written in ANSI C. [MIT]

Blackhole

Attribute-based logging framework, which is designed to be fast, modular and highly customizable. [MIT]

Boost.Log

Designed to be very modular and extensible. [Boost]

BqLog

A lightweight, high-performance logging system used in projects such as "Honor of Kings". [Apache-2.0]

Easylogging++

Extremely light-weight high performance logging library for C++11 (or higher) applications. [MIT]

fmtlog

A performant fmtlib-style logging library with latency in nanoseconds. [MIT]

G3log

Asynchronous logger with Dynamic Sinks. [PublicDomain]

glog

C++ implementation of the Google logging module

haclog

An extremely fast plain C logging library. [MIT]

A library of C++ classes for flexible logging to files, syslog, IDSA and other destinations. [LGPL]

log4cplus

A simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. [BSD & Apache2]

loguru

A lightweight C++ logging library. [PublicDomain]

lwlog

Very fast synchronous and asynchronous C++17 logging library. [MIT]

plog

Portable and simple log for C++ in less than 1000 lines of code. [MPL2]

reckless

Low-latency, high-throughput, asynchronous logging library for C++. [MIT]

spdlog

Super fast, header only, C++ logging library

A very small and lightweight C++ library which you can use to add logging to your C++ applications. [Boost]

An open source and cross-platform library for high-speed sending telemetry & trace data with minimal usage of CPU and memory. [LGPL]

Quill

Asynchronous cross platform low latency logging library. [MIT]

Caffe

A fast framework for neural networks. [BSD]

catboost

A fast, scalable, high performance Gradient Boosting on Decision Trees library. [Apache2]

CCV

C-based/Cached/Core Computer Vision Library, A Modern Computer Vision Library. [BSD]

darknet

Open source neural network framework written in C and CUDA. [PublicDomain]

Dlib

A modern C++11 machine learning, computer vision, numerical optimization, and deep learning toolkit. [Boost]

FAISS

A library for efficient similarity search and clustering of dense vectors. [MIT]

Fido

A highly-modular C++ machine learning library for embedded electronics and robotics. [MIT]

flashlight

A fast, flexible machine learning library from Facebook AI Research written entirely in C++ and based on the ArrayFire tensor library. [BSD-3-Clause]

ggml

Tensor library for machine learning with 16-bit and 4-bit quantization support. [MIT]

libsvm

A simple, easy-to-use, efficient library for Support Vector Machines. [BSD-3-Clause]

m2cgen

A CLI tool to transpile trained classic ML models into a native C code with zero dependencies. [MIT]

MeTA

A modern C++ data sciences toolkit. [MIT]

Minerva

A fast and flexible system for deep learning. [Apache2]

mlpack

A scalable c++ machine learning library. [LGPLv3]

ncnn

A high-performance neural network inference computing framework optimized for mobile platforms. [BSD]

OpenCV

Open Source Computer Vision Library. [BSD]

oneDAL

A powerful machine learning library that helps speed up big data analysis. [Apache]

ONNX runtime

C and C++ library for training and inference ONNX models. ONNX is a standard that AI models can be converted into, regardless of the library they are trained with. [MIT]

Recommender

C library for product recommendations/suggestions using collaborative filtering (CF). [BSD]

RNNLIB

RNNLIB is a recurrent neural network library for sequence learning problems. [GPLv3]

SHOGUN

The Shogun Machine Learning Toolbox. [GPLv3]

The suite of fast incremental algorithms for machine learning. [Apache2]

USearch

Fast search and clustering library for vectors and strings. [Apache2]

VLFeat

The VLFeat open source library implements popular computer vision algorithms specialising in image understanding and local featurexs extraction and matching. [BSD-2-Clause]

xgboost

Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Flink and DataFlow. [Apache2]

Apophenia

A C library for statistical and scientific computing. [GPL2]

Fast C++ library for linear algebra & scientific computing. [Apache2]

autodiff

A modern, fast and expressive C++ library for automatic differentiation. [MIT]

high-performance C++ math library for dense and sparse arithmetic. [BSD]

Boost.Multiprecision

provides higher-range/precision integer, rational and floating-point types in C++, header-only or with GMP/MPFR/LibTomMath backends. [Boost]

C++ library for modeling and solving large complicated nonlinear least squares problems from google. [BSD]

CGAL

Collection of efficient and reliable geometric algorithms. [LGPL&GPL]

free C++ math library for games and graphics. [Boost]

CNL

A Compositional Numeric Library for C++. [Boost]

DirectXMath

An all inline SIMD C++ linear algebra library for use in games and graphics apps

Dlib

A modern C++11 machine learning, computer vision, numerical optimization, and deep learning toolkit. [Boost]

A high-level C++ library of template headers for linear algebra, matrix and vector operations, numerical solvers and related algorithms. [MPL2]

The C++ Mathematical Expression Toolkit Library (ExprTk) is a simple to use, easy to integrate and extremely efficient run-time mathematical expression parser and evaluation engine. [MIT]

C++ library for computing in the fields of mathematics, graphics, image analysis and physics. [Boost]

GLM

Header-only C++ math library that matches and inter-operates with OpenGL's GLSL math. [MIT]

Graphics Math Template Library is a collection of tools implementing Graphics primitives in generalized ways. [GPL2]

A C library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers. [LGPL3 & GPL2]

Klein

A fast, SIMD-optimized C++17 Geometric Algebra library for point, line, and plane projections, intersections, joins, rigid-body motion, and more. [MIT]

linalg.h

Single header, public domain, short vector math library for C++. [Unlicense]

MatX

A GPU-accelerated C++17 numerical computing library with a MATLAB/Python-like syntax. [BSD 3-clause]

MIRACL

A Multiprecision Integer and Rational Arithmetic Cryptographic Library. [AGPL]

NumCpp

A templatized header only C++ implementation of the Python Numpy library. [MIT]

muParser is an extensible high performance math expression parser library written in C++. [MIT]

LibTomMath

A free open source portable number theoretic multiple-precision integer library written entirely in C. [PublicDomain & WTFPL]

linmath.h

A lean linear math library, aimed at graphics programming. [WTFPL]

A library used to formulate and solve linear programming problems. [LGPL]

OpenBLAS

An optimized BLAS library based on GotoBLAS2 1.13 BSD version. [BSD 3-clause]

PCG is a family of simple fast space-efficient statistically good algorithms for random number generation. Unlike many general-purpose RNGs, they are also hard to predict. [Apache]

QuantLib

A free/open-source library for quantitative finance. [Modified BSD]

SimSIMD

Vector distance functions for x86 AVX2, AVX-512, Arm NEON, and SVE. [Apache2]

StatsLib

A C++ header-only library of statistical distribution functions. [Apache2]

SymEngine

Fast symbolic manipulation library, a rewriting of SymPy's core in C++. [MIT]

TinyExpr

A C library for parsing and evaluating math expressions from strings. [zlib]

Vc

SIMD Vector Classes for C++. [BSD]

A (fast) Generic C++ library for Geometric Algebras, including Euclidean, Projective, Conformal, Spacetime (etc)

Wagyu

A general library for geometry operations of union, intersections, difference, and xor. [mapbox-wagyu original]

A C++ library of efficient, robust and simple to use C++ 2D/3D oriented computational geometry routines. [MIT]

xtensor

A C++14 library for numerical analysis with multi-dimensional array expressions, inspired by NumPy syntax. [BSD 3-clause]

universal

A C++14 header-only library implementing arbitrary posit arithmetic. The posit number system is a tapered floating point that is more efficient than IEEE floating point. Posits enable reproducible computational science. [MIT license]

XAD

Powerful Automatic Differentiation for C++. [AGPL]

Boehm GC

Conservative garbage collector for C and C++. [similar to X11]

C Smart Pointers

Smart pointers for the (GNU) C programming language. [MIT]

Hoard

Fast, Scalable, and Memory-efficient Malloc for Linux, Windows, and Mac. [Apache-2.0]

jemalloc

General purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support. [BSD]

memory

STL compatible C++ memory allocator library. [ZLib]

memory-allocators

Custom memory allocators to improve the performance of dynamic memory allocation. [MIT]

mimalloc

A compact general purpose allocator with excellent performance. [MIT]

rpmalloc

Cross platform lock free thread caching 16-byte aligned memory allocator implemented in C. [PublicDomain]

snmalloc

Message passing based high-performance allocator. [MIT]

TCMalloc

Google's fast, multi-threaded malloc implementation. [Apache-2.0]

buddy_alloc

A single header buddy memory allocator for C with bounded allocation costs. [0BSD]

tgc

A tiny garbage collector for C written in ~500 LOC. [BSD]

A library for constructing graphs of media-handling components. [LGPL]

libass

Portable subtitle renderer for the ASS/SSA subtitle format. [ISC]

libav

A collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata. [LGPL v2.1+ and others]

Multimedia streaming library using open standard protocols (RTP/RTCP, RTSP, SIP). [LGPL]

libVLC (VLC SDK) media framework. [GPL]

MediaInfoLib

Convenient unified display of the most relevant technical and tag data for video and audio files. [BSD]

QtAv

A multimedia playback framework based on Qt and FFmpeg to write a player easily. [LGPL]

SDL

Simple DirectMedia Layer. [zlib]

SFML

Simple and Fast Multimedia Library. [zlib]

TagLib

A library for reading and editing the metadata of several popular audio formats. [LGPL/MPL]

ada

WHATWG-compliant and fast URL parser written in modern C++. [Apache-2.0/MIT]

An OO Network Programming Toolkit in C++. [?MIT?]

Boost.Asio

A cross-platform C++ library for network and low-level I/O programming. [Boost]

Boost.Beast

HTTP and WebSocket built on Boost.Asio in C++11. [Boost]

Breep

Event based, high-level C++14 peer-to-peer library. [EUPL-1.1 (OSI approved)]

C++ REST SDK

C++ REST SDK (previously named Casablanca). [Apache2]

Restbed

C++11 Asynchronous RESTful framework. [AGPL]

Restinio

A header-only C++14 library that gives you an embedded HTTP/Websocket server. [BSD]

c-ares

A C library for asynchronous DNS requests. [MIT]

cpp-httplib

A single file C++11 header-only HTTP/HTTPS server library. [MIT]

A collection of open-source libraries for high level network programming. [Boost]

cpp-netlib/uri

URI parser/builder library for C++, compatible with RFC 3986 and RFC 3987. [Boost]

CppServer

Ultra fast and low latency asynchronous socket server & client C++ library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution. [MIT]

cpr

A modern C++ HTTP requests library with a simple but powerful interface. Modeled after the Python Requests module. [MIT]

curlcpp

An object oriented C++ wrapper for CURL(libcurl). [MIT]

curlpp

-C++ wrapper around libcURL. [MIT]

DPDK

Data Plane Development Kit, libraries and drivers for fast packet processing. [BSD-3-Clause & GPL-2.0]

Dyad.c

Asynchronous networking for C. [MIT]

ENet

Reliable UDP networking library. [MIT]

evpp

C++ high performance networking with TCP/UDP/HTTP protocols. [BSD]

FTP client for C++

C++ client for making FTP requests. [MIT]

H2O

An optimized HTTP server with support for HTTP/1.x and HTTP/2. It can also be used as a library. [MIT]

HTTP Parser

A http request/response parser for C. [MIT]

KCP

A fast and reliable ARQ protocol that helps applications to reduce network latency. [MIT]

Multiprotocol file transfer library. [MIT/X derivate license]

libhttpserver

C++ library for creating an embedded Rest HTTP server (and more). [LGPL2.1]

GNU libmicrohttpd is a small C library that is supposed to make it easy to run an HTTP server as part of another application. [LGPL v2.1+]

libpcap

A portable C/C++ library for network traffic capture. [BSD]

libquic

A QUIC protocol library extracted from Chromium's QUIC Implementation. [BSD]

librdkafka

Apache Kafka client library for C and C++. [BSD-2-Clause]

libwebsockets

A lightweight pure C WebSocket implementation that provides both client and server libraries. [LGPL2.1 + static link exception]

Build high performance C++ HTTP servers without being a C++ expert. [MIT]

A lightweight TCP/IP stack. [Modified BSD]

mailio

mailio is a cross platform C++ library for MIME format and SMTP, POP3 and IMAP protocols. [BSD]

Mongoose

Extremely lightweight webserver. [GPL2]

MQTT-C

A portable MQTT C client for embedded systems and PCs alike. [MIT]

mTCP

Highly scalable user-level TCP stack for multicore systems. [Modified BSD]

Muduo

A C++ non-blocking network library for multi-threaded server in Linux. [BSD]

nghttp2

HTTP/2 C Library. [MIT]

nghttp3

HTTP/3 library written in C. [MIT]

Onion

HTTP server library in C designed to be lightweight and easy to use. [Apache2/GPL2]

PF_RING™

High-speed packet processing framework. [LGPL-2.1]

PicoHTTPParser

A tiny, primitive, fast HTTP request/response parser. [MIT]

C++ class libraries and frameworks for building network- and internet-based applications that run on desktop, server, mobile and embedded systems. [Boost]

Proxygen

Facebook's collection of C++ HTTP libraries including an easy to use HTTP server. [BSD]

RedPanda

Streaming data platform for developers. Kafka API compatible. 10x faster. [BSL]

RakNet

A cross platform, open source, C++ networking engine for game programmers. [BSD]

restclient-cpp

Simple REST client for C++. It wraps libcurl for HTTP requests. [MIT]

Seasocks

Simple, small, C++ embeddable webserver with WebSockets support. [BSD]

tlse

Single C file TLS 1.2/1.3 implementation, using tomcrypt as crypto library [BSD-2-Clause]

TQUIC

A high-performance, lightweight, and cross-platform QUIC library, exposed to C and C++. [Apache2]

Tufão

An asynchronous web framework for C++ built on top of Qt. [LGPL2]

uriparser

Strictly RFC 3986 compliant URI parsing and handling library. [BSD-3-Clause]

uWebSockets

µWS is one of the most lightweight, efficient & scalable WebSocket & HTTP server implementations available. [Zlib]

UCall

A high-performance SIMD-accelerated RPC library on io_uring. [Apache2]

WAFer

A C language-based ultra-light software platform for scalable server-side and networking applications. Think node.js for C programmers. [GPL2]

Wangle

A client/server application framework to build asynchronous, event-driven modern C++ services. [Apache-2.0]

wdt

An embeddedable library (and command line tool) aiming to transfer data between 2 systems as fast as possible over multiple TCP paths. [BSD-3-Clause]

WebSocket++

C++/Boost Asio based websocket client/server library. [BSD]

PcapPlusPlus

a multiplatform C++ network sniffing and packet parsing and crafting framework. [Unlicense]

ZeroMQ

High-speed, modular asynchronous communication library. [LGPL3/MPL2]

DuckX

C++ library for creating and modifying Microsoft Word (.docx) files. [MIT]

an open source library to extract valid data from within Spreadsheets. [MPL/GPL-2/LGPL-2]

libxls

Read binary Excel files from C/C++ [BSD-2-Clause]

libxlsxwriter

A C library for creating Excel XLSX files. [BSD-2-Clause]

OpenXLSX

A C++ library for reading, writing, creating and modifying Microsoft Excel® (.xlsx) files. [BSD-3-Clause]

XLSX files writer for Microsoft Excel 2007 and above. [zlib]

XLSX I/O

C library for reading and writing .xlsx files. [MIT]

libharu

A free, cross platform, open-sourced software library for generating PDF. [zlib]

Library to create and edit PDF documents that uses GDI functions through a device context to draw the page content. [LGPL v3 and zlib]

A lightweight PDF, XPS, and E-book viewer. [AGPL/Proprietary]

PDF-Writer

High performance library for creating, modiyfing and parsing PDF files in C++ [Apache-2.0]

pdfio

A simple C library for reading and writing PDF files. [Apache-2]

PDF generation and rendering library. [BSD-3-Clause]

A library to work with the PDF file format. [LGPL]

Open-source multi-backend PDF rendering library based on the xpdf-3.0 code base. [GPLv2/GPLv3]

Xpdf is a free PDF viewer and toolkit, including a text extractor, image converter, HTML converter, and more. [GPL v2/GPL v3]

An easy-to-use PDF generation library. [Commercial]

Box2D

A 2D physics engine for games. [BSD-like]

Bullet

A 3D physics engine for games. [zlib]

Chipmunk

A fast and lightweight 2D game physics library. [MIT]

Jolt Physics

A multi core friendly rigid body physics and collision detection library. [MIT]

Kratos

framework for building parallel, multi-disciplinary simulation software, aiming at modularity, extensibility, and high performance. [BSD]

LiquidFun

A 2D physics engine for games. [BSD-like]

Newton Dynamics

An integrated solution for real time simulation of physics environments. [zlib]

Open Dynamics Engine - An open source, high performance library for simulating rigid body dynamics. [BSD&LGPL]

ofxBox2d

openFrameworks wrapper for Box2D. [BSD-like]

PhysX

An open-source realtime physics engine middleware SDK developed by Nvidia as a part of Nvidia GameWorks software suite. [BSD-3-Clause]

PlayRho

An interactive physics engine & library. [Zlib]

Project Chrono

An open source multi-physics simulation engine. [BSD-3-Clause]

Quantum++

A modern C++11 quantum computing library. [MIT]

QuarkPhysics

A 2D Soft Body and Rigid Body Physics Engine. [MIT]

Simbody

High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton. [Apache2]

SOFA

SOFA is an open-source framework targeting at real-time simulation, with an emphasis on medical simulation. [LGPL]

config-loader

A C++17 static reflection framework, from parse configuration file to native data structure. [MIT]

Better Enums

Reflective enums (to string, iteration). Single header. [BSD]

clReflect

C++ Reflection using clang. [MIT]

CPFG

A C++03 library for reflection, callback and script binding. [Apache2]

CPP-Reflection

C++ Reflection using clang. [MIT]

Easy Reflection

Easy and fast reflection + serialization solution like in Rust, Java or Go. [Apache]

Magic Enum

Header-only C++17 library provides static reflection for enums (to string, from string, iteration), work with any enum type without any macro or boilerplate code. [MIT]

magic_get

std::tuple like methods for user defined types without any macro or boilerplate code. [Boost]

meta

Header-only, non-intrusive and macro-free runtime reflection system in C++. [MIT]

Nameof

Header-only C++17 library provides nameof macros and functions to obtain the simple name of variable, type, function, macro, and enum. [MIT]

Ponder

A C++11 library for reflection. [MIT]

REFLECT

C++20 Static Reflection library. [MIT]

reflect-cpp

Serialization through reflection, including automatic field name retrieval from structs. [MIT]

RTTR

A C++11 library for reflection. [MIT]

simple_enum

An Fast, Intuitive and Type-Safe C++ Enumeration Support Library. [BSL-1.0]

TSMP

An intrusion and macro-free C++20 library for static reflection. It uses libclang to extract reflection data from your source code and makes it usable via template specialization. [MIT]

visit_struct

A miniature library for struct-field reflection in C++. [Boost]

Refureku

A C++17 runtime reflection and code generation library. [MIT]

CppVerbalExpressions

C++ regular expressions made easy. [MIT]

CTRE

A Compile time PCRE (almost) compatible regular expression matcher. [MIT]

Hyperscan

Hyperscan is a high-performance multiple regex matching library by Intel. Provides simultaneous matching of large numbers of regexps (up to tens of thousands). Typically used in a DPI library stack. [BSD]

Oniguruma

A modern and flexible regular expressions library that supports a variety of character encodings. [BSD]

A regular expression C library inspired by the regular expression capabilities in Perl. [BSD]

PIRE

Perl Incompatible Regular Expressions library by Yandex. Can be really fast (more than 400 MB/s). [LPGL v3.0]

RE2

A software library for regular expressions via a finite-state machine using automata theory. [BSD-3-Clause]

SLRE

Super Light Regexp engine for C/C++. [GPLv2/Proprietary]

sregex

A non-backtracking NFA/DFA-based Perl-compatible regex engine library for matching on large data streams. [BSD]

Unicode-aware regular expression template library for C++. [BSD]

Vectorscan

A portable fork of the high-performance regular expression matching library. [BSD-3-Clause]

A set of open source C++ modules for providing autonomy on robotic platforms, in particular autonomous marine vehicles

Mobile Robot Programming Toolkit. [BSD]

PCL

Point Cloud Library is a standalone, large scale, open project for 2D/3D image and point cloud processing. [BSD]

A self-contained C++ library for robot kinematics, motion planning and control. [BSD]

A collection of C++ libraries for simulation and control of robot systems. [Apache2]

Robot Operating System provides libraries and tools to help software developers create robot applications. [BSD]

Ruckig

Real-time motion generation for robots and machines. [MIT]

YARP (Yet Another Robot Platform)

Library and toolkit for communication and device interfaces. [BSD-3-Clause]

SPICE Toolkit

Library and toolkit for computing geometric information used in planning and analyzing science observations obtained from robotic spacecraft. [MIT]

AMGCL

a header-only C++ library for solving large sparse linear systems with algebraic multigrid. [MIT]

Au

A C++14-compatible physical units library with no dependencies and a single-file delivery option. Emphasis on safety, accessibility, performance, and developer experience. [Apache 2.0]

A C library for computing the DFT in one or more dimensions. [GPL]

GNU scientific library. [GPL]

preCICE

Coupling library for partitioned multi-physics simulations (FSI, CHT, and more). [LGPL]

TileDB

Fast Dense and Sparse Multidimensional Array DBMS. [MIT]

Trilinos

High performance PDE solvers. [BSD]

Torch

A scientific computing framework with wide support for machine learning algorithms that puts GPUs first. [BSD-3-Clause]

AngelScript is a game-oriented interpreted/compiled scripting language. [zlib]

Boost.Python

A C++ library which enables seamless interoperability between C++ and the Python programming language. [Boost]

cppimport

Import C++ files directly from Python! [MIT]

CppSharp

Tools and libraries to glue C/C++ APIs to high-level languages. [MIT]

ChaiScript

An easy to use embedded scripting language for C++. [BSD]

ctypes.sh

A foreign function interface for bash. [MIT]

Cython

Cython is an optimising static compiler for both the Python programming language and the extended Cython programming language (based on Pyrex). It makes writing C extensions for Python as easy as Python itself. [Apache]

A tool for generating cross-language type declarations and interface bindings. [Apache2]

Duktape

An embeddable JavaScript engine with compact footprint. [MIT]

JavaCpp

The missing bridge between Java and native C++. [Apache2]

libffi

A portable foreign-function interface library. [MIT]

A minimal and fast scripting engine for configuration files and basic application scripting. [MIT]

LuaBridge

A lightweight, dependency-free library for binding Lua to C++. [MIT]

LuaBridge3

A lightweight, dependency-free library for binding Lua, LuaJIT, Luau and Ravi to C++. [MIT]

luacxx

C++11 API for creating Lua bindings. [MIT]

scripting language modern, elegant, easy to learn, and easy to embed in your own C# or C++ projects. [MIT]

nbind

Magical headers that make your C++ library accessible from JavaScript. [MIT]

PHP-CPP

A library to build PHP extensions with C++. [Apache2]

pocketpy

C++17 header-only Python interpreter for game scripting. [MIT]

pybind11

Seamless operability between C++11 and Python. [BSD]

a small and embeddable JavaScript engine. [MIT]

C or C++ Bindings Generator for Python v2 and v3. [GPL]

sol2

A C++ <-> Lua API wrapper with advanced features and top notch performance. [MIT]

SWIG

A wrapper/interface Generator that let you link your c++ code to JavaScript, Perl, PHP, Python, Tcl and Ruby. [GPL/Output not licensed]

txiki.js

A tiny JavaScript runtime. [MIT]

V7

An embedded JavaScript engine. [GPL2]

A fast JavaScript engine by Google that can be embedded into any C++ application. [BSD]

v8pp

Header-only library to expose C++ classes and functions into V8 to use them in JavaScript code. [BOOST]

ChakraCore

-A JavaScript engine by Microsoft that can be embedded into nodejs. [MIT]

Bitsery

Header only C++ binary serialization library. [MIT]

Bond

An open source, cross-platform framework for working with schematized data. [MIT]

Boost.Serialization

Boost Serialization Library. [Boost]

Cap'n Proto

Fast data interchange format and capability-based RPC system. [MIT]

cereal

A C++11 library for serialization. [BSD]

cista

A C++17 library for zero-copy high-performance (de-)serialization. [MIT]

cppcodec

Header-only C++11 library to encode/decode base64, base32 and hex with consistent, flexible API. [MIT]

FastBinaryEncoding

Fast Binary Encoding is ultra fast and universal serialization solution for C++, C#, Go, Java, JavaScript, Kotlin, Python, Ruby, Swift. [MIT]

FlatBuffers

A Memory efficient serialization library. [Apache2]

A declarative language to describe various binary data structures and a compiler to generate C++ parser code. [GPLv3+][MIT][Apache2]

iguana

a modern, universal and easy-to-use serialization engine developed in C++20 and C++17. [Apache2]

MessagePack

Efficient binary serialization format "like JSON" for C and C++. [Apache2]

mrpt-serialization

Versioned serialization to binary or text formats. [BSD]

nanopb

Small code-size Protocol Buffers implementation in ANSI C. [Zlib]

protobuf

Protocol Buffers - Google's data interchange format. [BSD]

protobuf-c

Protocol Buffers implementation in C. [BSD]

Protocol Puffers

A little, highly templated, and protobuf-compatible serialization/deserialization header-only library written in C++20. [Apache-2.0]

SimpleBinaryEncoding

encoding and decoding application messages in binary format for low-latency applications. [Apache2]