zenpen - A minimalist writing zone.
pushstate-server - Static file server that works with HTML5 Pushstate.
react-time - Component for React to render relative and/or formatted dates into HTML5 element
bootstrap-validator - A user-friendly HTML5 form validation jQuery plugin for Bootstrap 3
parse5 - WHATWG HTML5 specification-compliant, fast and ready for production HTML parsing/serialization toolset for Node.js
nodegarden - HTML5 Node Garden
RealtimeMultiplayerNodeJs - Realtime Mutliplayer Game Engine using Node.js / websockets for HTML5 that uses a client-server approach in which the clients send only sampled input to the server
Chart.js - Simple HTML5 Charts using the tag
wysihtml5 - 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 unmaintainable tag soups and inline styles.