Open source products

HTTPie

CLI HTTP client, user-friendly cURL replacement. The most popular Python project on GitHub.

CloudTunes

Music player for Dropbox and YouTube built with JavaScript, Backbone.js, Sass/Compass, Python, Tornado, Redis, MongoDB.

Cointrol

Bitcoin trading bot with a real-time dashboard implemented in Python, Tornado, CoffeeScript/JavaScript, Backbone.js.

rrule.js

JavaScript support for recurrence rules for calendar dates as defined in the iCalendar RFC.

lastfmclient

Python client for Last.fm which also provies a non-blocking client for Tornado.