awesome-service-workers

A hands-on guide and reference for service workers, caching strategies, push notifications, and more. Everything you need to build a modern progressive web app

A gentle introduction to service workers

A great Udacity course introducing service workers and IndexedDB

Service Workers Explained

Service workers explained by

A general introduction to service workers and using UpUp to provide offline functionality in minutes

Service Workers 101

An infographic summarizing the most important parts of service workers API

A collection of recipes for different use cases

Shortest available introduction, by

The bible of service worker Patterns by Jake Archibald

A fascinating look at design and UX considerations for dealing with various states of connectivity

The WIP spec for Background Sync

The official service workers spec

Up-to-date browser support table of ServiceWorker API

Current status of ServiceWorker support in different browsers

A popular service worker library providing complete offline functionality for your site in 1 line of code

sw-toolbox

A collection of simple helpers to simplify implementing common runtime caching patterns

Generate a web app manifest, required for push notifications and installable web apps

sw-precache

Generates a service worker to cache your local App Shell resources

A service worker helper library to retry offline Google Analytics requests when a connection is available

a set of libraries and Node modules that make it easy to cache assets and take full advantage of features used to build progressive web apps

A quick dive into the most common technologies and techniques for building progressive web apps

This free Udacity course is a must if you're planning to dive deep into service workers

Explains how to structure your web app to optimize load time for initial and return visitors, and cover helpful service worker libraries that minimize the amount of boilerplate code you'll have to write

A case-study about how Google I/O 2015 web app was built

One of the most significant benefits of service workers (from a performance perspective, at least) is their ability to proactively control the caching of assets. A web application that can cache all of its necessary resources should load substantially faster for returning visitors. But what do these gains actually look like to real users? And how do you even measure this?