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Helium vs Midori: catalog facts
Helium	Midori
Free Free and open source, supported by sponsors.	Free Free to download and use. Some Astian services are paid.
Windows, macOS, Linux	Windows, Linux, Android
Ad, tracker and cookie banner blocking on by default No telemetry or background requests without consent	Ad blocking and tracking protection enabled without installing extensions
Younger project than established privacy browsers Built on Chromium, so it follows Google's engine decisions	Small team behind a Chromium fork, so security updates depend on their release pace No macOS build
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MPL-2.0
No account 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 23, 2026	Official website Full listing and sources Checked September 22, 2026

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