The next generation of webapp-i18n, starting in April 2015, that uses git-bigfile to avoid storing large resources.
Fast math typesetting for the web.
A small library of functional programming utilities.
Step by steps math solutions for everyone
Build and release tools for the MathJax project
A Python in-memory test stub for BigQuery
A small library to make it easy to send alerts to various platforms
Code that runs on the khan-academy webserver ec2 instance (for dev tools and the like)
Scripts and the like that Jenkins jobs can run.
Perseus is Khan Academy's new exercise question editor and renderer.
A KA-specific web hook to notify Slack/HipChat about Phabricator and GitHub events.
Experimental knowledge-management system for Long-term Research references
an accessibility (a11y) visualization toolkit
A Google Cloud Dataflow streaming job to export Khan Academy logs to BigQuery
Lint and code-munging tools for Khan Academy codebase
A jQuery plugin for implementing balancing of wrapping text in a web page
A browser-based live coding environment.
Arcanist is the CLI to Differential, Facebook's code review tool. Currently an unstable preview release.
libphutil is a collection of utility classes for PHP. Currently an unstable preview release.
An early release of Facebook's development tools.
Khan Academy's MathJax configuration, build, and binary files
Prototypes around a medium and toolset for exploring quantities and arithmetic operations
A fork of the Google App Engine SDK with modifications required by Khan Academy
KA Engineering blog.
It's inline styles, but they work!
Sorts, adds, and deletes include (or import, or require) lines in a variety of languages
Experimental intermediate representation for KaTeX to support multiple renderers
Tweak your iOS app without recompiling!