Validate.js
Lightweight JavaScript form validation library inspired by CodeIgniter.
Popcorn Js
The HTML5 Media Framework
Fluxible
A pluggable container for isomorphic flux applications
Backbone Relational
Get and set relations (one-to-one, one-to-many, many-to-one) for Backbone models
Foo Table
jQuery plugin to make HTML tables responsive
jQuery Textcomplete
Introduce autocompleting power to textareas, like GitHub comment forms have.
Pg Mem
An in memory postgres DB instance for your unit tests
Mercury
A truly modular frontend framework
Postal.js
JavaScript pub/sub library supporting some advanced subscription features, plus message capture and replay
Nipplejs
A virtual joystick for touch capable interfaces.
Redux Loop
A port of elm-effects and the Elm Architecture to Redux that allows you to sequence your effects naturally and purely by returning them from your reducers.
Sprintf.js
sprintf.js is a complete open source JavaScript sprintf implementation.
Flowplayer
The HTML5 video player for the web
Fast Json Patch
Lean and mean Javascript implementation of the JSON-Patch standard (RFC 6902). Update JSON documents using delta patches.
Ejecta
A Fast, Open Source JavaScript, Canvas & Audio Implementation for iOS
Rome
Customizable date (and time) picker. Opt-in UI, no jQuery!
Chimee
a video player framework aims to bring wonderful experience on browser