Rekapi
A keyframe animation library for JavaScript.
Officegen
Standalone Office Open XML files (Microsoft Office 2007 and later) generator for Word (docx), PowerPoint (pptx) and Excell (xlsx) in javascript. The output is a stream.
Jsblocks
Better MV-ish Framework
Izi Toast
Elegant, responsive, flexible and lightweight notification plugin with no dependencies.
Html
A simple, extensible way to work directly with the DOM.
Fancy Select
A better select for discerning web developers everywhere.
Background Check
Automatically switch to a darker or a lighter version of an element depending on the brightness of images behind it.
Inversify Js
A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
Fast.js
Faster user-land reimplementations for several common builtin native JavaScript functions.
Selectivizr
Selectivizr is a JavaScript utility that emulates CSS3 pseudo-classes and attribute selectors in Internet Explorer 6-8.
Salvattore
A jQuery Masonry alternative with CSS-driven configuration.
Px Loader
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
LScache
A localStorage-based memcache-inspired client-side caching library.
Featherlight
Featherlight is a very lightweight jQuery lightbox plugin. It's simple yet flexible and easy to use. Featherlight has minimal css and uses no inline styles, everything is name-spaced, it's completely customizable via config object and offers image, ajax and iframe support out of the box. Featherlights small footprint weights about 4kB – in total.
Es2015 I18n Tag
ES2015 template literal tag for i18n and l10n (translation and internationalization)
Sherlock
Natural-language event parser for Javascript
Jumly
Rendering engine for UML diagrams in JavaScript