TestRail’s web-based test case management is used by thousands of great QA and Development teams to efficiently organize, track and manage software testing.
LibreCAD - An open source 2D CAD application for Windows, Apple and Linux.
PractiTest - PractiTest is a cloud based Innovative test management tool.
FreeCAD - An open-source parametric 3D modeler
Qase - Test case management software for QA and development teams that helps you make your product better.
SketchUp - 3D for Everyone
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.