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Tor (network)

Free and open-source anonymity network based on onion routing / From Wikipedia, the free encyclopedia

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Tor, short for The Onion Router,[6] is free and open-source software for enabling anonymous communication.[7] It directs Internet traffic via a free, worldwide, volunteer overlay network that consists of more than seven thousand relays.[8]

Quick facts: Developer(s), Initial release, Stable release...
Developer(s)The Tor Project
Initial releaseSeptember 20, 2002; 20 years ago (2002-09-20)[1]
Stable release(s) [±] (August 30, 2023; 14 days ago (2023-08-30)[2])
Preview release(s) [±]
Written inC,[3] Python, Rust[4]
Operating systemUnix-like, (Android, Linux, BSD, macOS), Microsoft Windows, iOS
Size50–55 MB
TypeOverlay network, mix network, onion router, Anonymity application
LicenseBSD 3-clause license[5]

Using Tor makes it more difficult to trace a user's Internet activity. Tor protects personal privacy by concealing a user's location and usage from anyone performing network surveillance or traffic analysis.[9] It protects the user's freedom and ability to communicate confidentially through IP address anonymity using Tor exit nodes.[10]