Pico – Flat-File CMS

Pico is an open source CMS application that is capable of very few things. It uses flat-files as the database and built with PHP. Simply, there is no setup and the app works instantly.

Genghis – A Single File MongoDB Admin

In order to manage MongoDB databases easily, Genghis, a single-file, self-hosted and web-based solution is pretty handy. It can be installed either as a Ruby gem or as a standalone PHP script.

BugKick – Open Source Bug Tracking App

BugKick is an open source bug tracking and task management application (source is hosted on GitHub) that is “light” in means of features (which i sometimes nice).