Lasem is a library for SVG and MathML rendering, implementing a DOM like API. It's based on GObject, and uses Pango and Cairo for the graphic output.
TOMUSS allows multiple users to edit the same spreadsheet table with their Web browsers. It stores the complete history of the table modification.
TOMUSS is intended to be used by teachers to enter ranking and to allow students to see their ranks.
A lossless PNG optimizer.
A multi-platform Zenity clone.