Local Storage
A localStorage polyfill
Accounting.js
A lightweight JavaScript library for number, money and currency formatting - fully localisable, zero dependencies.
Power Array
Boosted Performance Array
Money.js
money.js is a tiny (1kb) javascript currency conversion library, for web & nodeJS
Z.js
turns content (in)visible
jQuery JSONP
jquery jsonp plugin
Zangodb
MongoDB-like interface for HTML5 IndexedDB
Rusha
High-performance pure-javascript SHA1 implementation suitable for large binary data, reaching up to half the native speed.
Chartkick
Create beautiful Javascript charts with one line of Ruby
Ramda Extension
🤘Utility library for functional JavaScript. With ❤️ to Ramda.
D3 Cloud
Create word clouds in JavaScript.
Easy Pie Chart
Lightweight jQuery plugin to render simple, animated and retina ready pie charts with the HTML5 canvas element
Jumly
Rendering engine for UML diagrams in JavaScript
Isjs
Check your data against regular expressions or known keywords.
Dc.js
Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js
Uv Charts
Simple yet powerful JavaScript Charting library built using d3.js
Backgrid
Finally, an easily stylable semantic HTML data grid widget with a Javascript API that doesn't suck.