Compare software

Mayo vs F3D: catalog facts
Mayo	F3D
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux	Web
Converts between STEP, IGES, STL and other CAD formats Clip planes, exploded views and measurement	Opens many 3D and CAD formats in one viewer Gaussian splatting and volume rendering support
A viewer and converter, not a modelling tool	A viewer, not an editor Minimal interface with few editing features
Downloadable app	Downloadable app, Web application
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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