AtHomeBills allows you to use your Web browser to monitor and manage your everyday personal bills. It comes with its own Web server and uses SQLite for its database.
Powerdns Tango is a simple Web frontend for PowerDNS written in the Perl dancer framework. Its design philosophy is to (hopefully) make DNS management simple, easy, and as quick as possible. It supports both MySQL and PostgreSQL backends.
MahewinSexyUrl is a Web application for shortening URLs. For now, it's a very simple URL shortener, but several features are in progress, like stats.
A simple image viewer for Java.
A groupware suite with a calendar, mail, todo, notes, and many more modules.