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Mayo vs Exhibit: catalog facts
Mayo	Exhibit
Free Free and open source.	Free Free and open source under the GPL-3.0 or later.
Windows, macOS, Linux	Linux
Converts between STEP, IGES, STL and other CAD formats Clip planes, exploded views and measurement	Opens many formats, including STEP, STL, glTF, USD and FBX Native GNOME interface
A viewer and converter, not a modelling tool	A viewer only, with no editing Designed for Linux and GNOME
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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