Open Source

JavaScript
KaTeX
Updated recently
The fastest math rendering library for the web.
JavaScript
live-editor
Updated recently
A browser-based live coding environment.
JavaScript
perseus
Updated recently
Khan Academy's new exercise question editor and renderer.
JavaScript
tota11y
Updated recently
An accessibility (a11y) visualization toolkit.
JavaScript
kmath
Updated recently
JavaScript Numeric Math Utilities.
JavaScript
react-components
Updated recently
Some components we build for Khan Academy the world might find useful.
Python
snippets
Updated recently
Code related to collecting and pushing weekly snippets.
JavaScript
khan-api
Updated recently
Documentation for (and examples of) using the Khan Academy API.
Python
tinyquery
Updated recently
A Python in-memory test stub for BigQuery.
JavaScript
GAE Mini Profiler
Updated recently
A ubiquitous mini-profiler for Google App Engine, inspired by mvc-mini-profiler.
Python
i18nize-templates
Updated recently
A tool to automatically add i18n markup to jinja2 and handlebars templates.
Python
guacamole
Updated recently
General-use machine learning for learning library.
JavaScript
khan-exercises
Updated recently
A framework for building exercises to work with Khan Academy.
JavaScript
structuredjs
Updated recently
A simple interface for checking the structure of JavaScript code.