Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
DevTest - Test management solution for efficient quality assurance
FreeCAD - An open-source parametric 3D modeler
Beta Testing - Beta Testing is an all-in-one feature-rich technical testing solution created to help small to large size businesses test and enhance their products through insights.
SketchUp - 3D for Everyone