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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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Recent Updates

New Release: Tails 7.7.3

by tails | May 12, 2026

This release is an emergency release to fix a critical security vulnerability in the Linux kernel, as well as security vulnerabilities in Tor Browser and in the Tor client.

Defending the public's right to know

by pavel | May 12, 2026

Fighting internet censorship requires more than noticing when it happens. It requires documenting it, sharing evidence, and building the collective capacity to respond. OONI makes that possible.

New Release: Tor Browser 15.0.13

by ma1 | May 8, 2026

Tor Browser 15.0.13 is now available from the Tor Browser download page and also from our distribution directory.

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Download Tor Browser to experience real private browsing without tracking, surveillance, or censorship.

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