A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.

Fast, easy and reliable testing for anything that runs in a browser.

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

Screenshots with JavaScript

Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.

Lightweight, user-friendly onboarding tour library

💩🚀 Windows 95 in Electron. Runs on macOS, Linux, and Windows.

The API and real-time application framework

Generate RFC-compliant UUIDs in JavaScript

JavaScript/TypeScript animation engine

A modular geospatial engine written in JavaScript and TypeScript

Access serial ports with JavaScript. Linux, OSX and Windows. Welcome your robotic JavaScript overlords. Better yet, program them!

Turbulenz is a modular 3D and 2D game framework for making HTML5 powered games for browsers, desktops and mobile devices.

A next-generation code testing stack for JavaScript.

Node.js library for the Stripe API.

An in-place DOM diffing library

Composable data framework for ambitious web applications.

ICU MessageFormat and Unicode Messageformat for Javascript

The fastest TypeScript animation engine on the web

A classic Mac loaded with everything you'd want

A library for building rich, web-based geospatial 2D & 3D data platforms.

Band.js - Music composer interface for the Web Audio API.

Node-rules is a light weight forward chaining rule engine that can be used in JavaScript and TypeScript based projects.

[MIGRATED] Format a string with placeholders, including plural and select support to create localized messages.

A node.js module to find the timezone based on gps coordinates

A Karma plugin to run Benchmark.js over multiple browsers with CI compatible output.

Pipe queued streams progressively.

A CSS property value parser for PostCSS

Helper methods for splitting CSS lists (e.g., spaces, commas).