Backgrid
Finally, an easily stylable semantic HTML data grid widget with a Javascript API that doesn't suck.
Backbone Relational
Get and set relations (one-to-one, one-to-many, many-to-one) for Backbone models
Jets.js
Native CSS search engine
Local Storage
A localStorage polyfill
Easy Pie Chart
Lightweight jQuery plugin to render simple, animated and retina ready pie charts with the HTML5 canvas element
Money.js
money.js is a tiny (1kb) javascript currency conversion library, for web & nodeJS
jQuery JSONP
jquery jsonp plugin
Countable
Countable is a JavaScript function to add live paragraph-, word- and character-counting to an HTML element.
Uv Charts
Simple yet powerful JavaScript Charting library built using d3.js
Papa Parse
Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input
Mesh.js
common, streamable interface for synchronizing data
Isjs
Check your data against regular expressions or known keywords.
Vue Ls
:boom: Vue plugin for work with local storage, session storage and memory storage from Vue context
Mindb
Database on JavaScript
Hashids.js
A small JavaScript class to generate YouTube-like hashids from one or many numbers. This is a client-side version of Node.js version.
Jit
The JavaScript InfoVis Toolkit provides tools for creating Interactive Data Visualizations for the Web
FileSaver.js
An HTML5 saveAs() FileSaver implementation