D2 is a modern diagram scripting language that turns text to diagrams
Doing Phonetics By Computer
A customisable music player
A python parametric CAD scripting framework based on OCCT
Make OpenStreetMap vector tiles without the stack
Nyquist is a language for sound synthesis and music composition.
DXF2GCODE: converting 2D dxf drawings to CNC machine compatible G-Code
FlightGear Flight Simulator: free open-source multiplatform flight sim
An interactive viewer for three-dimensional chemical structures.
Draw vector graphics to scale using a descriptive language
Scan documents to PDF and other file types, as simply as possible.
itom - an Open Source Measurement, Automation and Evaluation Software
3D modeler, 3D game maker, 3D demo maker
A pixel art editor that supports animation and scripting
A PowerShell Module for drawing pixelated art in the terminal
Audio Editor
The Free and Open Source Music Visualizer Tool
Java 2D graphics/utility library