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[[!meta title="License"]]

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Tails is [[Free Software|doc/about/license]]; you can download, use, and
share it with no restrictions.

Tails is released under the GNU/GPL (version 3 or above).
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However, Tails includes non-free firmware in order to work on as much hardware as
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possible.

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Website
=======

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This website uses several images with distinct copyright, licenses, trademarks
and distribution terms:
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  - The Tails logo is based on [[USB|http://thenounproject.com/term/usb/23873/]]
    by Ilsur Aptukov from the Noun Project.
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  - Debian logo: Copyright (c) 1999 Software in the Public Interest.
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  - Onion logo: registered trademark of The Tor Project, Inc.; the Tails
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project is authorized to use it under certain conditions; licensed under
Creative Commons Attribution 3.0 United States License.
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  - Icons from [[The Noun Project|http://thenounproject.com/]]:
    - [[Announcement|http://thenounproject.com/term/announcement/1186/]]:
      Creative Commons - Attribution, by Olivier Guin.
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    - [[Code|http://thenounproject.com/term/code/18033/]]:
      Creative Commons — Attribution, by Azis.
    - [[Pen|http://thenounproject.com/term/pen/18907/]]:
      Creative Commons — Attribution, by factor[e] design initiative.
    - [[Loan|http://thenounproject.com/term/loan/19538/]]:
      Public Domain, by Rohith M S.
    - [[User|http://thenounproject.com/term/user/419/]]:
      Creative Commons — Attribution, by Edward Boatman.
    - [[Translation|http://thenounproject.com/term/translation/5735/]]:
      Creative Commons — Attribution, by Joe Mortell.
    - [[Gears|http://thenounproject.com/term/gears/8949/]]:
      Creative Commons — Attribution, by Cris Dobbins.
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    - [[Graphic Design|http://thenounproject.com/term/graphic_design/9198/]]:
      Creative Commons — Attribution, by Cornelius Danger.
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    - [[Check Mark|https://thenounproject.com/term/check/4489/]]:
      Public Domain, by Julian Norton.
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    - [[Delete|https://thenounproject.com/term/delete/49691/]]:
      Creative Commons — Attribution, by Kervin Markle.
    - [[Play|https://thenounproject.com/term/play/152052]]:
      Creative Commons — Attribution, by Zech Nelson.
    - [[Pause|https://thenounproject.com/term/pause/152046]]:
      Creative Commons — Attribution, by Zech Nelson.
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Distribution of the source code
===============================

Most of the software distributed with Tails is taken directly from
upstream Debian packages, and is not modified or recompiled by
Tails. Software that is modified or recompiled by Tails are available
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in [[our git repositories|/contribute/git]]. If you require or desire
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the sources for unmodified Debian upstream packages, retrieving them
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from Debian is the simplest solution for all parties (packages that can
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not be found in the regular Debian archive anymore can be found at
<http://snapshot.debian.org/>).

According to the GPL licence (section 3(b) of the GPLv2 and section
6(b) of the GPLv3), complete sources for all Tails releases are
available for anyone who requests them, in DVD format, via postal
mail, for a nominal charge. If you only require one or two source
packages, Tails can work with you to send a copy of individual
packages electronically.