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Thorium vs Supermium: catalog facts
Thorium	Supermium
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free to download from its GitHub repository.
Windows, macOS, Linux	Windows
Offers builds tailored to several instruction sets and platforms.	Current Chromium engine on Windows XP through Windows 8.x Tracks recent Chromium versions
You need to select a build compatible with your processor.	Windows only Maintained by a small team, so security fixes may lag behind Chrome
Downloadable app	Downloadable app
Open source	Closed source
License: BSD-3-Clause	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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