Software-as-a-Service (SaaS) CAD / used to have a free tier - Signin

see also

• CADmium: A Local-First CAD Program Built for the Browser
  • CADmium: A Local-First CAD Program Built for the Browser - introduction to b-rep kernel
  • Boundary representation (abbreviated B-rep or BREP) a method for representing a 3D shape
    • Crash course on CAD data. Part 3 – BRep vs. Mesh
    • BRep Format (Open CASCADE)