Easy Pie Chart
Lightweight jQuery plugin to render simple, animated and retina ready pie charts with the HTML5 canvas element
G.raphael
gRaphaël’s goal is to help you create stunning charts on your website. It is based on Raphaël graphics library.
Uv Charts
Simple yet powerful JavaScript Charting library built using d3.js
Mavo
Create web applications entirely by writing HTML and CSS!
Flotr2
Graphs and Charts for Canvas in JavaScript.
Superstruct
A simple and composable way to validate data in Javascript.
jQuery File Upload
File Upload widget with multiple file selection, drag&drop support, progress bars and preview images for jQuery. Supports cross-domain, chunked and resumable file uploads and client-side image resizing. Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.
SockJS Client
WebSocket emulation - Javascript client
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.
jQuery JSONP
jquery jsonp plugin
Tablecloth
A CSS and JS bootstrap to style and manipulate data tables
Isjs
Check your data against regular expressions or known keywords.
Backgrid
Finally, an easily stylable semantic HTML data grid widget with a Javascript API that doesn't suck.
Ydn Db
Javascript database module for Indexeddb, Web SQL and localStorage storage mechanisms supporting version migration, advanced query, SQL and transaction.
Holmes
Fast and easy searching inside a page
Marilyn
Marilyn is a client side, Socket.IO driven, Pub/Sub, model layer with a query system similar to Mongoose.
Mqtt.js
The MQTT client for Node.js and the browser