Contao Open Source CMS (fka TYPOlight)
Simple counter for Windows Explorer
Dino - Simple File Manager for GNU/Linux
Kurisu OS 3.0
The leading Open Source survey tool
a simple WPF player
A simple calculator using C#
The open content management system for news.
Notepad++ project is moving to GitHub:
Open Source photo Library Software
cryptocurrency with own PoW/PoS[Masternode] Blockchain
Free and open source webmail software