Compare software

CAD AssistantF3D
Free

Free for personal and commercial use.

 Free

Free and open source.

macOS, Android Web
  • Opens STEP, IGES and other CAD formats
  • Converts between 3D formats
  • Opens many 3D and CAD formats in one viewer
  • Gaussian splatting and volume rendering support
  • Viewer and converter only, not a modelling tool
  • Closed source despite being built on the open OCCT kernel
  • A viewer, not an editor
  • Minimal interface with few editing features
Downloadable app Downloadable app, Web application
Closed source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.