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Exhibit vs CAD Assistant: catalog facts
Exhibit	CAD Assistant
Free Free and open source under the GPL-3.0 or later.	Free Free for personal and commercial use.
Linux	macOS, Android
Opens many formats, including STEP, STL, glTF, USD and FBX Native GNOME interface	Opens STEP, IGES and other CAD formats Converts between 3D formats
A viewer only, with no editing Designed for Linux and GNOME	Viewer and converter only, not a modelling tool Closed source despite being built on the open OCCT kernel
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License not stated
Not stated if an account is needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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