qSong is a song database program with multimedia features for worship musicians and other people working with music. It allows you to store and manage all song-related information, such as chords, lyrics, authors, and copyright. It can create songbooks in popular formats such as PDF, HTML, and ChordPro. All items in the database can be searched and sorted.
Chaos Visualization is a program for quickly calculating the amount of predictability in a very simple system: a spring with one side connected to the origin and the other to a weight under gravity. This amount is chaos is visualized in TIFF images, which can be put in a sequence to show the evolution of chaotic behaviour in this system.
TOIlet is a tool that renders ASCII and ANSI art text, just like FIGlet but with many enhancements. It has support for Unicode glyphs and ANSI colours within fonts and ANSI colour input. It can also apply filters on the output (rotate, colourise, etc.) and can produce output in various formats, including ANSI, HTML, and SVG.