Help out your favorite open source projects and become a better developer while doing it.

Octopress is an obsessively designed framework for Jekyll blogging. It’s easy to configure and easy to deploy. Sweet huh?

Midje provides a migration path from clojure.test to a more flexible, readable, abstract, and gracious style of testing

The Cocoa Dependency Manager.

Fuel PHP Framework - The core of the Fuel v1 framework

Secure chat software for your computer.

RDoc produces HTML and online documentation for Ruby projects. RDoc includes the rdoc and ri tools for generating and displaying online documentation.

JavaScript-based multi-user chat client for XMPP.

The fundamental package for scientific computing with Python.

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

Static site generator that supports Markdown and reST syntax. Powered by Python.

The Jinja2 template engine

Moved to Codeberg; this is a convenience mirror

A configurable set of panels that display various debug information about the current request/response.

the ninja of .net dependency injectors

Reversible conversions between types

Abstract Algebra for Scala

The Backbone Framework

Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono

Incredibly simple real-time web for .NET

A simple but effective mini-profiler for ASP.NET MVC, ASP.NET and Ruby.

Continuous Archiving for Postgres

A delightful community-driven (with 1,000+ contributors) framework for managing your zsh configuration. Includes 200+ optional plugins (rails, git, OSX, hub, capistrano, brew, ant, php, python, etc), over 140 themes to spice up your morning, and an auto-u

Simple JavaScript Duckumentation generator.

The configuration framework for Zsh

A small self-contained alternative to readline and libedit

Meteor, the JavaScript App Platform

Ruby on Rails CRM platform

Redis Python Client

Open Source PHP Framework (originally from EllisLab)

Warbler chirpily constructs .war files of your Ruby applications.

Clojure-based, R-like statistical computing and graphics environment for the JVM

Compass is no longer actively maintained. Compass is a Stylesheet Authoring Environment that makes your website design simpler to implement and easier to maintain.

the coder’s starter kit: sound, animation, video, messaging in a low-key ruby environment.

Adds support for creating state machines for attributes on any Ruby class

a code metric tool for rails projects

A command-line power tool for Twitter.

Ruby ORM for Amazon's DynamoDB

Text-mode interface for git

matplotlib: plotting with Python

Crowdfunding Free Software, one issue at a time.

Test Anything Protocol tools for node

Clojure HTTP server abstraction

Eclipse Groovy Development Tools

Ruby tool for importing existing svn projects into git.

Fluent Migrations framework for .net

A silky, tactile browser-based ebook JavaScript library.

Magical authentication for Rails 3 & 4

Unittest extensions for Flask

Video.js - open source HTML5 video player

Efficient many-to-many connections between posts, pages, custom post types, users.