Tor Project: Anonymity Online


  • Tor prevents people from learning your location or browsing habits.
  • Tor is for web browsers, instant messaging clients, and more.
  • Tor is free and open source for Windows, Mac, Linux/Unix, and Android

Anonymity Online

Protect your privacy. Defend yourself against network surveillance and traffic analysis.

What is Tor?

Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security.
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Why Anonymity Matters

Tor protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, and it prevents the sites you visit from learning your physical location.
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Our Projects

Tor Browser

Tor Browser contains everything you need to safely browse the Internet.

Tor for Google Android devices.

Live CD/USB operating system preconfigured to use Tor safely.

Terminal (command line) application for monitoring and configuring Tor.

Site providing an overview of the Tor network.

Pluggable Transports

Pluggable transports help you circumvent censorship.

Library for writing scripts and applications that interact with Tor.

Global observatory monitoring for network censorship.

Learn more about our projects »
We're hiring! »

Recent Blog Posts

Who Uses Tor?

Family & Friends

People like you and your family use Tor to protect themselves, their children, and their dignity while using the Internet.


Businesses use Tor to research competition, keep business strategies confidential, and facilitate internal accountability.


Activists use Tor to anonymously report abuses from danger zones. Whistleblowers use Tor to safely report on corruption.


Journalists and the media use Tor to protect their research and sources online.

Military & Law Enforcement

Militaries and law enforcement use Tor to protect their communications, investigations, and intelligence gathering online.

Trademark, copyright notices, and rules for use by third parties can be foundin our FAQ.

About Tor

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