awesome-json

Very fast JSON Viewer, supporting huge (multi gigabytes) files, JSON log (JSON-Lines and ndjson)

Visual JSON

simple JSON pretty-viewer for Mac OS X. (inactive)

JSONExport

convert a object to a class of one of the currently supported languages

Binary JSON

An extremely efficient object serialization library

The universally compatible format specification for binary JSON

Concise Binary Object Representation

PSON

Protocol JSON, super efficient binary serialization format

Space-efficient binary JSON serialization format based on JSON Schema

( ) - Makes JSON easy to read. Open source

( ) - It is a Chrome extension for printing JSON and JSONP

( ) - Browse like you do it in Finder

( - An open source Chrome extension for browsing JSON with syntax highlighting and folding, or as a visual graph

( ) - Gron inspired Extension. Convert a JSON document into javascript expressions. Comes with filter, remove, find-and-replace capabilities

( ) - View JSON documents in the browser

( ) - Formats & syntax highlights JSON viewed inside of the web browser using the ACE editor

( ) - A port of the JSONView Firefox extension that formats and syntax highlights JSON viewed inside of the browser

dsq

Tool for running SQL queries against JSON, CSV, Excel, Parquet, and more

fx

A interactive terminal tool

jo

A small utility to create JSON objects

jsoncat

Pretty-print Json in terminal with colors and adjusting tabs size

jq

A lightweight and flexible command-line JSON processor

jaq

A jq clone focussed on correctness, speed, and simplicity. Written in Rust

gojq

Pure Go implementation of jq. A bit faster and more portable

livejq

An alternative implementation in rust for continuous parsing without crashing on invalid JSON

A "json" command for massaging JSON on your Unix command line

json-search

A small tool to search for objects/values in json files

A parser designed for maximum convenience within the shell

Shorthand JSON and form encoding syntax in the shell

jsawk

Like awk, but for JSON

json-dotenv

Manipulate and extract envfiles in json format

gron

Convert a JSON file into discrete assignments that are greppable

jid

Incremental Digger. Drill down JSON interactively by using filtering queries like jq

jiq

It's with . You can drill down interactively by using filtering queries

jv

jv (for jsonviewer) helps you view your JSON

jl

Functional sed for JSON

oj

A fast and flexible command line JSON processor

visidata

A terminal spreadsheet-like tool for interactively exploring data

jc

Converts the output of many CLI tools, file-types, and common strings into JSON

logdy

jq, tail, less, grep and awk merged together and available in a clean web UI

an open-source document database, and the leading NoSQL database

An open-source distributed document database with a pleasant and powerful query language

EJDB

Embedded JSON Database engine published under MIT license. (C)

lowdb

Flat file database built on lodash API. (Javascript)

Lawnchair

A lightweight clientside document store. (Javascript)

JSON ODM

Object document mapper for JavaScript to use on the server or in the browser. (Javascript)

JSON Server

Get a full fake REST API with zero coding in less than 30 seconds

Kinto

A lightweight JSON storage service with synchronisation and sharing abilities

Seamless multi-master sync, that scales from Big Data to Mobile, with an Intuitive HTTP/JSON API and designed for Reliability

RxDB

Event-driven JSON-Database with JSON-Schema, mango-Query and CouchDB-sync. (Javascript)

JSONlite

A simple, self-contained, serverless, zero-configuration, json document store. (Bash)

Various country related datasets, as JSON inc currency, country codes, names and more

countries

World countries

Up to date Magic the Gathering card data

Up to date Hearthstone card data

Generator for custom Countries data

JSONModel

Magical Data Modelling Framework. (Objective-C)

jsonymize

Reads data from standard input, anonymizes, then writes to standard output

dyson

Server for dynamic, fake JSON. (node.js)

A format for describing changes to a document

JSON-Patch

Lean and mean Javascript implementation of the JSON-Patch standard (RFC 6902). (Javascript)

jiff

JSON Patch and diff based on rfc6902. (Javascript)

json-patch-php

implementation of JSON-patch (IETF RFC 6902) (PHP)

dffptch

A micro library for diffing and patching using a compact diff format. (Javascript)

jsondiffpatch

Diff & patch for JavaScript objects. (Javascript)

Content Management System that supports arbitrary data model structures

User friendly, visual editor built as an AngularJS directive

Display your JSON as a graph

A geospatial data interchange format

A lightweight Linked Data format

A stateless, light-weight remote procedure call (RPC) protocol

Safer cross-domain Ajax with JSON-P/JSONP

A compact format for transporting XML-based markup as JSON which allows it to be losslessly converted back to its original form

a extension that aims to make it easier for humans to write and maintain by hand

JSON6

JSON for Humans (ES6)

An evolved version 1.1 with format extension for humans incl. comments, unquoted and multi-line strings, optional and trailing commas and more

The open source initiative to create standard for resumes

A compact URL-safe means of representing claims to be transferred between two parties

A standard for building APIs

A read/write hypermedia-type designed to support management and querying of simple collections

A set of conventions for expressing hyperlinks in either JSON or XML

A format for syndicating social activities around the web

JSON-stat

Simple lightweight format for data dissemination

Making open source contribution information easier to access, across projects

NDJSON

(Newline delimited JSON) - a standard for delimiting JSON in stream protocols

JSON based survey library

A protocol for synchronising JSON-based data objects efficiently, with support for push and out-of-band binary data upload/download

JackSON: JSON secret keeper

JSONic way of storing secrets in config file

Sequence JSON

A proposal for a standard way of creating music sequence data in JSON

JSON editor jQuery plugin

component for you web apps/pages. (jQuery)

Widget for displaying a tree structure in html. (jQuery)

jquery plugin, that provides interactive trees. (jQuery)

Dynatable.js

A funner, semantic, HTML5+JSON, interactive table plugin. (jQuery)

JSON Formatter

Angular directive for collapsible JSON in HTML. (AngularJS)

A React component for building Web forms from JSON Schema. (React)

@textea/json-viewer

A React component for JSON viewer. (React)

ngx-formly

JSON powered / Dynamic forms for Angular

Jansson

A C library for encoding, decoding and manipulating data

A minimalistic parser in C. It can be easily integrated into the resource-limited projects or embedded systems

json-build

A minimalistic serializer in C. It can be easily integrated into the resource-limited projects or embedded systems

ojc

A fast JSON parser

ArduinoJson

An efficient library for embedded systems

JSON++

A self contained Flex/Bison parser for C++11

json11

A tiny library for C++11

Nlohmann JSON

A C++11 header-only class

RapidJSON

A fast JSON parser/generator for C++ with both SAX/DOM style API

simdjson

Parsing gigabytes of JSON per second

data.json

parser/generator to/from Clojure data structures

JSON-Fortran

A Fortran library for writing, reading, and manipulating JSON files and data structures

ojg

A collection of high performance JSON processing and generating tool

aeson-qq

JSON quasiquoter for Haskell

JSON Schema library for Haskell

JSON Schema Draft 4 library for Haskell

JSON-java

A reference implementation

Gson

A Java library to convert JSON to Java objects and vice-versa

Jackson

A multi-purpose Java library for processing JSON data format

moshi

A modern JSON library for Android and Java

essential-json

A lightweight Java library for serialization, parsing and manipulation with a clean and precise API

dsl-json

A very fast streaming JSON library. Operates on byte arrays

mjson

Lean JSON Library for Java, with a compact, elegant API

JSON-js

JSON in JavaScript

A modern implementation

oboe.js

A streaming approach, speeds up web applications by providing parsed objects before the response completes

A JSON formatter that produces human-readable but fairly compact output

JsonHilo

Minimal lossless parse event streaming, akin to SAX

JSONKit

Objective-C library

SBJson

Parse one or more chunks of data

JSON::Tiny

Perl module for encoding and decoding JSON in a minimalistic way

PL/JSON

A generic JSON object written in PL/SQL

Webmozart JSON

A robust decoder/encoder with support for schema validation

simplejson

A simple, fast, extensible encoder/decoder

Library for serializing any arbitrary object graph

An ultra-fast Python 3 implementation of a JSON encoder

oj

A fast JSON parser and Object marshaller as a Ruby gem

MultiJSON

A generic swappable back-end for JSON handling

json2react

Use JSON to create React Stateless Components

jsonfx

serialization framework for .NET

jsonapi-consumer

Client framework for consuming JSONAPI based APIs on the

A formatter that produces human-readable but fairly compact output

spray-json

A lightweight, clean and simple implementation in Scala

circe

Yet another JSON library for Scala

scala-jsonapi

Support library for integrating the JSON:API spec with Play, Spray and/or Circe backends

jsoniter-scala

Scala macros for compile-time generation of ultra-fast JSON codecs

JSON parsing and generation library in for shell scripts (Ash/Bash)

SwiftyJSON

The better way to deal with data in Swift

jsonlint

Parser and validator with a CLI. (Javascript)

JSON Lint

PHP linter. (PHP)

The JSON Validator

The Advanced Version of the JSON Linter

JSON editor, inspector and beautifier

A web-based tool to view, edit and format

Formatter and Colorer of Raw Code

Formatter to help with debugging

Tool for generating random data

Web API to quickly generate fake data for your application

A free, in-browser JSON to CSV converter

Easy, privacy-friendly and offline-first online csv to json converter

Generate c# classes from a json string or url

Site for generating C#, VB.Net, and Javascript classes from JSON

Simply edit GeoJSON map data

A playground for jq

Convert JSON to YAML online

A simple GUI for generating the selectors to access

Fully client-side validator and formatter

Online live JSON generator

Fake Online REST API for Testing and Prototyping

Diff tool to compare two files

A simple and free JSON Schema Validation API

A Visual, Unbiased and Up-to-Date JSON Performance Benchmark

Formatter that produces human-readable but fairly compact output

a JSON based format for defining the structure of JSON data

Language for validating and specifying values

Kwalify

A parser, schema validator, and data binding tool

Simple, Extensible Schemata

A simple and free API for currency exchange rate data

JSON IP and GeoIP REST API

JSONProxy

Simple HTTP proxy that enables cross-domain requests to any JSON API

JSON IP and GeoIP REST API

a simple JSON storage platform

A human friendly data serialization standard for all programming languages

HanSON

JSON for Humans - with unquoted identifiers, multi-line strings and comments

μson

(uson) - a shorthand for JSON

HOCON

Human-Optimized Config Object Notation

ASON

A semantically complete superset of JSON (draft)

TOML

A minimal configuration file format that's easy to read due to obvious semantics

HCL

A structured configuration language that is both human and machine friendly

An introductory tutorial on JavaScript Object Notation (JSON)

Basic operations in different languages (57 languages in this moment)

Video tutorial for beginners

How jq can be used to process JSON files just as effectively as traditional Unix tools

AXON

A simple text based format for interchanging of objects, documents and data. It tries to combine the best of JSON, XML and YAML

CSON

CoffeeScript-Object-Notation. JSON for CoffeeScript objects

MSON

Markdown syntax compatible with describing JSON and JSON Schema

Structured text format optimized for human writability

Type-o-rama

JS type systems interportability, comparison of different JS type systems and conversion between them

Awesome jq

A curated list of awesome jq tools and resources

A domain specific configuration language that helps you define JSON data

rabl

General ruby templating with json, bson, xml, plist and msgpack support. (Ruby)

HTML templating library with wrappers for both jQuery and Node.js. (Javascript)

Testing platform for services utilizing JavaScript Object Notation (JSON)

JSONassert

Write JSON unit tests in less code. Great for testing REST interfaces. (Java)

JsonUnit

A library that simplifies JSON comparison in unit tests. It's strongly inspired by XmlUnit

JSON Parsing Test Suite

A very complete test suite and validation framework

JSON Reformat

Reformat tool

vim-json

A better JSON for Vim: distinct highlighting of keywords vs values, JSON-specific (non-JS) warnings, quote concealing. Pathogen-friendly

Formatter that produces human-readable but fairly compact output

nvim-jqx

Browse and query json files in neovim from the quickfix window. (Lua)

json-sharp

Javascript tool to process operations on pure JSON objects. (Javascript)

json2json

Transform (reformat) structures from one to another. (Javascript)

trans

The ultimate object transformer. (Javascript)

osmtogeojson

Converts OSM data to GeoJSON. (Javascript)

fast-xml-parser

Fast XML to JSON and vice versa javascript/JSON conversion

x2js

XML to JSON and vice versa javascript conversion functions. (Javascript)

JSONC

JSON compressor and decompressor. (Javascript)

JsonMapper

Map nested structures onto PHP classes (PHP)

SassyJSON

Sass-powered API. (Sass)

A small library to convert a JSON object into a human readable HTML representation that is easy to style for different purposes

JSONtoFoundation

OS X utility that converts a JSON object to a Foundation object that can be used in Cocoa/Cocoa Touch development. (Swift)

fanci

Extract, rename and transform JSON based on a template. (node.js)

Pinch

String.replace for JavaScript objects. (Javascript)

A better way to load big json config files. (node.js)

jsontl

allow transformation using a JSON-based transformation language. (node.js)

json-transforms

A recursive, pattern-matching, approach to transforming JSON structures

normalizr

Normalizes nested JSON according to a schema. (Javascript)

JSON-populate

Tool for populating JSON data with infinitely recursive circular references. Sort of like Falcor, but for plain JSON

CircularJSON

JSON does not handle circular references. Now it does

Sawmill

JSON transformation library (Java)

nimnjs

JSON to nimn bidirectional converter

stylops

CSS subset to JSON conversion. (node.js)

dasel

Query and update data structures using selectors from the command line. Comparable to / but supports JSON, YAML, TOML and XML with zero runtime dependencies

A query language for JSON

JSON Mask

Tiny language and engine for selecting specific parts of a JS object, hiding the rest. (Javascript)

The JSON Query Language

The agile query language for semi-structured data. (Python)

Lightning-fast searches using XPath expressions, and transform using XSL. (Javascript)

JSONSelect

CSS-like selectors. (Javascript)

XPath implementation. (Javascript/PHP)

searchjs

A library for filtering based on a json SQL-like language

json-rel

Transparent references in JSON

Query and transformation language used in Node-RED, supports function expressions

JSON Editor

JSON Schema Based Editor. (jQuery)

angular-schema-form

Generate forms. (AngularJS)

JSON Schema View

An AngularJS directive for rendering JSON Schema in HTML (AngularJS)

Angular JSON Schema Form

Angular directive for making forms out of JSON Schema. (AngularJS)

Generates JSON Schema driven forms on top of Bootstrap, jQuery Mobile, jQuery UI and HTML (jQuery)

prmd

Tools and doc generation for HTTP APIs

generate-schema

Effortlessly convert your JSON Object to JSON Schema, Mongoose Schema, or a Generic template for quick documentation / upstart

Docson

Documentation for your types

Orderly JSON

A textual format for describing JSON compiled into JSONSchema

jsonschema2pojo

Generates Java types and annotates those types for data-binding with Jackson 1.x or 2.x, Gson, etc

Matic

Build tool for generating HTML documentation

JSON Schema + Faker

Fake your schemas

DLL.js

Gets you a JSON Schema from PostgreSQL or SQLite3

JSON Schema generator from JSON object

js-schema

A new way of describing object schemas in JavaScript. It has a clean and simple syntax, and it is capable of serializing to/from the popular JSON Schema format

aptos

A tool for validating data using JSON Schema and converting JSON Schema documents into different data-interchange formats

JSON Schema $Ref Parser

Parse, resolve, and dereference JSON Schema $ref pointers

A website aiming to provide more accessible documentation for JSON schema

A collection of popular schemas

a Book and GitHub project, showing how JSON Schema can be used for a variety of tasks and in different programming contexts

Awesome JSON Schema

A curated list of awesome JSON Schema resources, tutorials, tools, and more

json-schema-benchmark

Performance benchmark for Node.js validators

is-my-json-valid

A validator that uses code generation to be extremely fast

jsen

A validator built for speed

themis

A blazing fast validator

jsck

JSON Schema Compiled checK

z-schema

validator written in JavaScript for NodeJS and Browsers

jjv

Javascript Library for Schema Validation

request-validator

Flexible request validator middleware for express and connect

tv4

Tiny Validator

ajv

The fastest validator. Supports v5/6 proposals

Medeia Validator

Compliant (draft-04/06/07) and fast streaming validator written in Kotlin

JSON Schema for PHP

PHP implementation of JSON schema

A validator for JSON Schema Draft 4

jsonschema

Python implementation of jsonschema

JSON Schema Toolkit

Programmatic building of JSON schemas (recursive field mappings) with validation, a Django JSON Field, and native PostgreSQL JSON type constraints

Ruby JSON Schema Validator

validating against a JSON schema conforming to JSON Schema Draft 4