[[!meta title="Obnam - backup software"]]

[[Download]] —
[[Documentation|https://doc.obnam.org/]] —
[[Contact]] —
[[Blog]] —
[[License]]

[[!img kitten.jpg class="float_right"
   link="https://commons.wikimedia.org/wiki/File:A_focused_kitten_(Pixabay).jpg"
   alt="Kitten being adorable. By Ty Swartz, CC0, via Wikimedia Commons"]]

Obnam is starting over from scratch. See [blog
post](https://blog.liw.fi/posts/2020/10/16/obnam2_-_a_new_backup_system/).
It is currently not ready to be used, but do check in later. See
[[roadmap]] for current plans.

This web site used to be about Obnam1, the original version that was
retired in 2017. All that content has been dropped now. 

**25-word summary of the new architecture:** client splits live data
into chunks, then compresses and encrypts them, and uploads new ones
to smart server via HTTP; server never sees cleartext.

[Subplot]: https://subplot.liw.fi/

# News

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[[!inline pages="page(blog/*)" 
  limit=5 template=titlepage archive=yes trail=no feeds=no]]
</div>


# Links

* [Source code (gitlab.com)](https://gitlab.com/larswirzenius/obnam) ([mirror](http://git.liw.fi/obnam2))
* [[Road map|roadmap]] for developing Obnam.
* Acceptance criteria are documented using [Subplot][], and are on
  [docs.obnam.org](https://doc.obnam.org/).
* [Obnam blog posts by Lars](https://blog.liw.fi/tag/obnam/)
* Other backup software:
  * [Borg](https://www.borgbackup.org/)
  * [Bupstash](https://bupstash.io/)
  * [restic](https://restic.net/)
  * [Snebu](https://www.snebu.com/)
* [Cache Directory Tagging Standard](http://www.bford.info/cachedir/)