Home of the WebKit project, the browser engine used by Safari, Mail, App Store and many other applications on macOS, iOS and Linux.

Servo, the embeddable, independent, memory-safe, modular, parallel web rendering engine

Read-only Git mirror of the Mercurial gecko repositories at https://hg.mozilla.org. How to contribute: https://firefox-source-docs.mozilla.org/contributing/contribution_quickref.html

web-platform-tests Interop project

Igalia Explainers

The Ethereum Wiki

The Python client library for the QC Ware Platform

The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++

A blazing fast & offline frontend playground

Application Architecture for Building User Interfaces

polyfill code and demos for CSS Round display

An API documentation generator for JavaScript.

JavaScript animation engine

Render After Effects animations natively on Web, Android and iOS, and React Native. http://airbnb.io/lottie/

Expose the file system on the user’s device, so Web apps can interoperate with the user’s native applications.

GitHub repo for the MDN Learning Area.

Use the WebXR Device API today, providing fallbacks to native WebVR 1.1 and Cardboard

Maintain an open standard for UI and promote its adherence and adoption.

Directional focus navigation with arrow keys

Use WebVR today, without requiring a special browser build.

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

The javascript library for magical scroll interactions.

🗂 The perfect Front-End Checklist for modern websites and meticulous developers

Former git repo for WebFundamentals on developers.google.com

The official GitHub mirror of the Chromium source

Element.scrollIntoView ponyfills for things like "if-needed" and "smooth"

An app development framework built atop React that’s easy to use, performant and customizable.

Accessible Rich Internet Applications (WAI-ARIA)

Test suites for Web platform specs — including WHATWG, W3C, and others