NASSCAD
Free parametric 3D CAD in your browser — no login needed
NASSCAD is a free, browser-based 3D CAD application for parametric solid modeling, boolean CSG operations, and engineering design. It supports STEP (AP203/AP214/AP242) and IFC import/export, plus STL and 3MF for 3D printing, with an optional native MEDUSA engine on Windows for faster boolean operations. Users can script models with NassScript, generate gears and pulleys, and save projects locally — no account or login required.
