A tool to help you understand your users' accessibility needs.
Ace (Ajax.org Cloud9 Editor)
Exploring and expanding on the mechanics and concepts behind Jenova Chen's Active Quiz through multitouch prototyping
A delightful networking framework for iOS, OS X, watchOS, and tvOS.
A fork of https://bitbucket.org/gumptioncom/agar with modifications required by Khan Academy
A small library to make it easy to send alerts to various platforms
tool for manipulating algebraic expressions and equations
Tools to analyze KA logs and other data
Framework-agnostic CSS-in-JS with support for server-side rendering, browser prefixing, and minimum CSS generation
A fork of https://code.google.com/p/appengine-gcs-client/ with modifications required by Khan Academy
A fork of http://code.google.com/p/appengine-mapreduce/ with modifications required by Khan Academy
A library for running MapReduce jobs on App Engine
Simple full text search demo for Google App Engine
Arcanist is the CLI to Differential, Facebook's code review tool. Currently an unstable preview release.
A fork of https://github.com/mitsuhiko/babel (formerly http://svn.edgewall.org/repos/babel/trunk) with modifications required by Khan Academy
Give your JS App some Backbone with Models, Views, Collections, and Events
A jQuery plugin for implementing balancing of wrapping text in a web page
Automated issue-frequency HipChat notifier
KA™ Big Board™-specific App Engine™-powered webhooks for extra super fun'n'fancy Trello™ power
Chrome extension that adds helper functions for regexp-based parsing of JSON strings to BigQuery
This experimental learning activity tries to help young children implicitly construct a sense of place value via play.
An HTML5 Blob implementation
GitHub clone of SVN repo http://blockly.googlecode.com/svn/trunk/ (cloned by http://svn2github.com/)
Hacked-up prototype for playing with place value intuition