Tails is Free Software: you can download, use, and share it with no restrictions.

The Tails source code is released under the GNU/GPL (version 3 or above) and is Copyright (C) Tails developers tails@boum.org. Any exception to this rule is documented either below or in the affected source file.

However, Tails includes non-free firmware in order to work on as much hardware as possible.

Source code

Most of the software included in Tails is taken directly from upstream Debian packages and is neither modified nor recompiled by Tails.

• The source code of software that is specific to Tails is available in our Git repositories.

• The source code of the Debian packages included in Tails is available in the APT snapshot that we created for that version of Tails.

• The red theme used by Tails' Unsafe Browser was downloaded from Mozilla add-ons website (https://addons.mozilla.org/en-US/firefox/addon/simplyred/):

  • license: Creative Commons Attribution 3.0
  • author: Firefox user 14030863

Website

This website uses several images with distinct copyright, licenses, trademarks and distribution terms:

• The Tails logo is based on USB by Ilsur Aptukov from the Noun Project.

• Debian logo: Copyright (c) 1999 Software in the Public Interest.

• Onion logo: registered trademark of The Tor Project, Inc.; the Tails project is authorized to use it under certain conditions; licensed under Creative Commons Attribution 3.0 United States License.

• The drawings on our Home and About pages are licensed under the Creative Commons Attribution-ShareAlike 4.0 International License, copyright Andrés Fernández Cordón (?source for Adobe Illustrator).

• All the drawings of our personas are licensed under the Creative Commons Attribution-ShareAlike 4.0 International License, copyright Thomas Verguet.

• The Boot Menu animation is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License, copyright Odile Carabantes and Enso Studio.

• Icons from The Noun Project:

  • Announcement: Creative Commons - Attribution, by Olivier Guin.

  • Code: Creative Commons — Attribution, by Azis.

  • Pen: Creative Commons — Attribution, by factor[e] design initiative.

  • Loan: Public Domain, by Rohith M S.

  • User: Creative Commons — Attribution, by Edward Boatman.

  • Translation: Creative Commons — Attribution, by Joe Mortell.

  • Gears: Creative Commons — Attribution, by Cris Dobbins.

  • Graphic Design: Creative Commons — Attribution, by Cornelius Danger.

  • Check Mark: Public Domain, by Julian Norton.

  • Delete: Creative Commons — Attribution, by Kervin Markle.

  • Play: Creative Commons — Attribution, by Zech Nelson.

  • Pause: Creative Commons — Attribution, by Zech Nelson.

  • USB: Creative Commons — Attribution, by Wilson Joseph.

  • Time: Creative Commons — Attribution, by Richard de Vos.

  • Printer: Creative Commons — Attribution, by Diego Naive.

  • Smart Phones: Creative Commons — Attribution, by Pham Thi Dieu Linh.

  • Laptop: Public Domain, by Jean Yashu.

  • Love: Creative Commons — Attribution, by Thomas Helbig.

  • Survey: Creative Commons — Attribution, by unlimicon.

  • Info: Creative Commons — Attribution, by icongeek.