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Opera GX vs Thorium: catalog facts
Opera GX	Thorium
Free Free to download and use. The software is closed source.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux
The resource limiters cap how much CPU, memory and bandwidth the browser may take, which keeps it from…	Offers builds tailored to several instruction sets and platforms.
It is closed source, the styling is loud and hard to tone down, and it carries Opera's same…	You need to select a build compatible with your processor.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: BSD-3-Clause
Not stated if an account is needed	Not stated if an account is 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 22, 2026

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