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Introducing Proof-of-Work Defense for Onion Services

by pavel | August 23, 2023

Today, we are officially introducing a proof-of-work (PoW) defense for onion services designed to prioritize verified network traffic as a deterrent against denial of service (DoS) attacks with the release of Tor 0.4.8.

  • network
  • onion services
  • releases
  • usability

New Alpha Release: Tor Browser 13.0a2 (Android, Windows, macOS, Linux)

by richard | August 12, 2023

Tor Browser 13.0a2 is now available from the Tor Browser download page and also from our distribution directory.

  • applications
  • releases

New Release: Tor Browser 12.5.2

by richard | August 2, 2023

Tor Browser 12.5.2 is now available from the Tor Browser download page and also from our distribution directory.

  • applications
  • releases

Arti 1.1.7 is released: incremental improvements, numerous bugfixes

by nickm | August 1, 2023

Arti 1.1.7 is released and ready for download.

  • announcements

New Alpha Release: Tor Browser 13.0a1 (Windows, macOS, Linux)

by richard | July 26, 2023

Tor Browser 13.0a1 is now available from the Tor Browser download page and also from our distribution directory.

  • applications
  • releases

New Release: Tor Browser 12.5.1

by richard | July 4, 2023

Tor Browser 12.5.1 is now available from the Tor Browser download page and also from our distribution directory.

  • applications
  • releases

Arti 1.1.6 is released: Now you can connect* to Onion Services!

by nickm | June 30, 2023

Arti 1.1.6 is released and ready for download.

  • announcements

New release: Tor Browser 12.5

by duncan | June 22, 2023

Tor Browser 12.5 is now available, featuring an updated circuit display, new icons for onion sites, improvements to the connection experience, better accessibility, Finnish language support and more.

  • applications
  • releases

New Release: Tails 5.14

by tails | June 13, 2023

It's a major version with a new backup feature in Tails Installer, automatic upgrade of the Persistent Storage to LUKS2, and captive portal detection.

  • partners
  • releases

New Alpha Release: Tor Browser 12.5a7 (Android, Windows, macOS, Linux)

by richard | June 9, 2023

Tor Browser 12.5a7 is now available from the Tor Browser download page and also from our distribution directory.

  • applications
  • releases
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Supporting those who speak out

by Blueprint for Free Speech | June 4, 2026

The digital threats faced by defenders of truth and democracy are multiplying. So should the capacity to respond to them. Through tools like Ricochet Refresh and cybersecurity training across lower- and middle-income countries, Blueprint for Free Speech helps people communicate anonymously, protect sensitive information, and continue public-interest work more safely.

New Release: Tails 7.8.1

by tails | June 4, 2026

Tails 7.8.1 is an emergency release to fix a serious security vulnerability in the Linux kernel, as well as security vulnerabilities in the Tor client.

New Alpha Release: Tor Browser 16.0a7

by ma1 | June 3, 2026

Tor Browser 16.0a7 is now available from the Tor Browser download page and also from our distribution directory.

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