Apache License

Crossfilter – JavaScript Library for Exploring Large Data Set with Coordinate View
Crossfilter is a JavaScript library for exploring large multivariate datasets in the browser. Crossfilter supports extremely fast (<30ms) interaction with coordinated views, even with datasets containing a million or more records; we built it to power analytics for Square Register, allowing merchants to slice and dice their payment history fluidly.

JavaScript Library for Time Series Visualization : Cubism.js
Cubism.js is a plugin for D3.js for visualizing time series. These Javascript library, use Cubism to construct better realtime dashboards, pulling data from Graphite, Cube and other sources to display time series in real-time.

Ospriet – An Audience Moderation App Built on Twitter
Ospriet is an moderation app/tool that allows for audiences with a Twitter account to post and vote on questions or comments for talks, presentations, and events by posting an @-reply to a Twitter account dedicated for an audience-oriented event. The application is written in node.js, uses MongoDB for database storage, and is designed for deployment [...]

JavaScript Templating Engine From Twitter
Hogan.js is a 2.5k Javascript templating engine developed at Twitter. Use it as a part of your asset packager to compile templates ahead of time or include it in your browser to handle dynamic templates.

Syntax Highlighting of Code Snippets in a HTML pages : Prettify
Google Code Prettify is a Javascript module and CSS file that allows syntax highlighting of source code snippets in an html pages.

Facebook GUI Toolkit Based on Bootstrap From Twitter : Fbootstrapp
Fbootstrapp is a facebook gui toolkit, designed to kickstart development of facebook iframe apps in both relevant sizes. It’s created by Clemens Krack, based on Twitter’s excellent Bootstrap.

HTML5 Filesystem API : filer.js
filer.js is a wrapper library for the HTML5 Filesystem API, an API which enables web applications to read and write files and folders to to its own sandboxed filesystem.

Twitter GUI Toolkit : Bootstrap
Bootstrap is a twitter GUI toolkit, designed to development of webapps and sites. It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.

Static Site Generator Written in PHP : Phrozn
Phrozn is static site generator written in PHP to building your website in a minutes. It’s extremely flexible static site generator that allows you to write your content and define style in your favorite style and then convert it in to a simple, clean and efficient website.
