The definitive HTML5 mobile javascript framework

Advanced HTML5 mobile development framework and SDK. Build incredible hybrid apps with web technologies you already know and love. Best friends with AngularJS.

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

HTML5 mockups of popular devices, to showcase your portfolio and spice up your website.

....a top-notch resource for web developers

WordPress starter theme based on HTML5 Boilerplate, gulp, Bower, and Bootstrap

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

An HTML5 saveAs() FileSaver implementation

Desktop/Android/HTML5/iOS Java game development framework

The HTML5 ebook framework to publish interactive books & magazines on iPad & iPhone using simply open web standards

Simple HTML5 Charts using the <canvas> tag

The Go programming language

Video.js - open source HTML5 & Flash video player

jPlayer : HTML5 Audio & Video for jQuery

HTML5 <audio> or <video> player with Flash and Silverlight shims that mimics the HTML5 MediaElement API, enabling a consistent UI in all browsers.

[mirror] A Tour of Go

The Easel Javascript library provides a full, hierarchical display list, a core interaction model, and helper classes to make working with the HTML5 Canvas element much easier.

A jQuery plugin that enables HTML5 placeholder behavior for browsers that aren’t trying hard enough yet

This script is the defacto way to enable use of HTML5 sectioning elements in legacy Internet Explorer.

JavaScript library for HTML5 & CSS3 time sheets

HTML5 Game Engine

The HTML5 Media Framework

Generate PDF files in JavaScript. HTML5 FTW.

Open source rich text editor based on HTML5 and the progressive-enhancement approach. Uses a sophisticated security concept and aims to generate fully valid HTML5 markup by preventing unmaintainabl…

Lightweight jQuery plugin to create sortable lists and grids using native HTML5 drag and drop API.

Collection of hacks and demos showing capability of HTML5 apps

History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTo…

HTML5 Web Socket implementation powered by Flash

Foundation HTML5 Animation with JavaScript example code and book exercises.