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Helium vs ungoogled-chromium: catalog facts
Helium	ungoogled-chromium
Free Free and open source, supported by sponsors.	Free Free and open source, maintained by volunteers who also build the binaries.
Windows, macOS, Linux	Windows, macOS, Linux
Ad, tracker and cookie banner blocking on by default No telemetry or background requests without consent	Google web service calls are removed rather than switched off in a settings page Stays a drop-in Chromium, so sites and developer tools behave as expected
Younger project than established privacy browsers Built on Chromium, so it follows Google's engine decisions	Extensions must be installed by hand; there is no store connection Binaries are built by volunteers and can lag the upstream Chromium release
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: BSD-3-Clause
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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