Libraries
WebsiteGenerator 
WebsiteGenerator is a library that allows you to generate static HTML and CSS. The website you are seeing right now is, in fact, also generated using this library!
CatTag 
CatTag is also a library for generating static HTML/XML and CSS. This is the spiritual successor to WebsiteGenerator
HolidAPI 
HolidAPI is a collection of API wrappers for Holiday APIs, which supports many countries.
Applications
gitman 
gitman is a cross-platform application to manage and update your cloned git repositories. Useful if you build software form source and want the repositories to be kept up-to-date on your system!
brainimfuck 
brainimfuck is a Brainfuck interpreter with built-in syntax checking and error highlighting.
CardGenerator 
CardGenerator lets you generate playing cards, while only focussing on the art and not the tedious work of manually compiling the final card image.
HzgShowAround 
HzgShowAround is a website for the people in the 'Herzogsägmühle' rehab, showing them around the place with the help of a map and keeping them up-to-date with the newsfeed.
FloppyBird 
FloppyBird is a basic FlappyBird clone written in Lua using the Love2D game engine.