Category
Parametric design, CNC toolpaths, and engineering drawing tools
Browser-based parametric CAD that punches above its weight. Free for hobbyists, version-controlled by default, and far more accessible than SolidWorks for getting started.
The professional CAD/CAM tool that is actually free for hobbyists. Parametric modeling, integrated CAM, and simulation in one package — the right tool when FreeCAD falls short.
Every hardware engineer's open secret — the catalog has STEP models for most parts, so you can drop a real McMaster bolt into your assembly and order it the same day.
The open-source parametric CAD that's finally worth using seriously. Slower than the commercial tools but free, cross-platform, and improving fast.
Far more than a 3D art tool — the mesh modeling, sculpting, and precision modeling workflows are legitimate for engineering visualization and concept design.
Parametric CAD through Python code — if you think in scripts rather than GUI, this is the path to fully repeatable, version-controlled mechanical design.
On-demand manufacturing in materials you can't print at home — nylon, metal, ceramic. Good for production-quality parts when your desktop machine hits its limits.