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

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