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GNU IceCat vs Tor Browser: catalog facts
GNU IceCat	Tor Browser
Free Free software from the GNU Project with no paid tier.	Free Free and open source. The Tor Project is a US non-profit funded by grants and donations.
Linux	Windows, macOS, Linux, Android
Contains only free software, with no nonfree add-on recommendations LibreJS blocks nonfree JavaScript	Traffic passes through three relays, so no single one knows both who you are and what you opened Fingerprinting defences make one Tor user look like the next
Blocking JavaScript breaks many modern sites until you allow scripts Builds are distributed from a third-party download page	Noticeably slower than a direct connection; video is painful Some sites block Tor exit nodes outright or bury you in captchas
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MPL-2.0
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.