Tor (network)
| Tor | |
|---|---|
The Tor Project logo | |
| Developer(s) | The Tor Project |
| Initial release | 20 September 2002 |
| Stable release(s) [±] | |
| 0.4.8.16 (24 March 2025) attack | |
| Preview release(s) [±] | |
| Repository | |
| Written in | C, Python, Rust |
| Operating system | Unix-like, (Android, Linux, BSD, macOS), Microsoft Windows, iOS |
| Size | 101–198 MB |
| Type | Overlay network, mix network, onion router, Anonymity application |
| License | BSD 3-clause license |
| Website | torproject |
| Part of a series on |
| File sharing |
|---|
Tor is a free overlay network for enabling anonymous communication. It is built on free and open-source software run by over seven thousand volunteer-operated relays worldwide, as well as by millions of users who route their Internet traffic via random paths through these relays.
Using Tor makes it more difficult to trace a user's Internet activity by preventing any single point on the Internet (other than the user's device) from being able to view both where traffic originated from and where it is ultimately going to at the same time. This conceals a user's location and usage from anyone performing network surveillance or traffic analysis from any such point, protecting the user's freedom and ability to communicate confidentially.