Advanced HTML5 Hybrid Mobile App Framework

Babylon.js: a complete JavaScript framework for building 3D games with HTML 5 and WebGL

A simple, accessible HTML5 media player.

L'outil de création de jeux HTML5 extensible, collaboratif 2D+3D

PhoneGap is a free and open source framework that allows you to create mobile apps using standardized web APIs for the platforms you care about.

Open Source HTML5 and Javascript game engine

Your starting point for building great multi-device web experiences

Extensible front-end HTML, CSS, and JavaScript user interface components for the responsive, mobile, and modern web.

LimeJS is a HTML5 game framework for building fast, native-experience games for all modern touchscreens and
desktop browsers.

HTML5 clone of Apple's AirDrop - easy P2P file transfer powered by WebRTC

Simple, small and fast JavaScript/jQuery polyfill for the HTML5 <input type="range"> slider element.

Collaborative downloader for your website
Reduces server load and bandwidth by up to 92%

Build mobile apps with simple HTML‚ CSS‚ and JS components.

Normalize.css makes browsers render all elements more consistently and in line with modern standards. It precisely targets only the styles that need normalizing.

HTML5 IE enabling script
Source code adds new HTML5 elements (which is simple code), but also supports printing HTML5 elements and includes the default styles for HTML5 elements, like block on article and section.

Ultra–Lean HTML Building Blocks for Rapid Website Production - KickStart your Website Production

Drag & drop image files onto the space below, or use the “Open” link to load images using the file browser. Then, click “Generate” to create a sprite sheet and stylesheet. This demo uses a couple of HTML5 APIs, and it is only compatible with modern browsers.

Phaser HTML5
Desktop and Mobile HTML5 game framework

The ultimate framework for building and validating responsive HTML5 forms.