[[!meta title="License and source code distribution"]]

Tails is [Free Software](https://www.gnu.org/philosophy/free-sw.html): you can download, use, and share it with no restrictions.

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|contribute/git]].

The [[!tails_gitweb config/chroot_local-includes/usr/share/tails/chroot-browsers/unsafe-browser/extensions/red-2.0-an+fx.xpi desc="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](https://addons.mozilla.org/en-US/firefox/user/14030863/)

Website

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

- [Forge](https://github.com/digitalbazaar/forge/), copyright Digital Bazaar, Inc.

The drawings on our [[Home|index]], [[About|about]], and [[Warnings|doc/about/warnings]] pages are licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright [Andrés Fernández Cordón](https://anhdres.com/) ([[source|lib/drawings.zip]] for Adobe Illustrator).

All the [[drawings of our personas|contribute/personas]] are licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright Thomas Verguet.

The [[Boot Menu animation|doc/first_steps/start/pc#animation]] is licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright [Odile Carabantes](https://studiomoare.com/) and [Enso Studio](https://www.ensostudio.tv/) ([source](https://gitlab.tails.boum.org/tails/ux/-/raw/master/boot%20menu%20key/animation.rar) for Adobe Illustrator and Adobe Premiere).

[[Announcement|http://thenounproject.com/term/announcement/1186/]]: Creative Commons - Attribution, by Olivier Guin.

[[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.

[[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.