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HeliumSlimjet
Free

Free and open source, supported by sponsors.

 Free

Free to download and use. The software is closed source.

Windows, macOS, Linux Windows, macOS, Linux
  • Ad, tracker and cookie banner blocking on by default
  • No telemetry or background requests without consent
  • Ad blocking works without extensions, and the extra download, form-fill and video tools are part of the browser…
  • Younger project than established privacy browsers
  • Built on Chromium, so it follows Google's engine decisions
  • It is closed source and maintained by a very small team, so security updates depend on how quickly…
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0 License not stated
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked September 22, 2026

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