Created: 2012-03-24 18:35
Updated: 2016-08-07 16:13
License: gpl-2.0




Mirall synchronizes your folders with another computer.

The ultimate goals of Mirall are:

  • Network location aware: should not try to sync against your NAS if you are not in the home network
  • It is a zero-interaction tool. So forget about resolving conflicts.
  • It should work silently and realiably.

Mirall is in early stages of development, and may still eat your files or hang your computer.

  • Network location awareness not implemented yet
  • Current version supports local and remote (sftp and smb) folders.
  • It is powered by csync (http://www.csync.org), however the user does not know and other tools will be incorporated to provide other functionality.

Current issues

  • No sane way to backup conflicting versions yet, this should be solved in a near csync release (--conflictcopy, available in Jann's branch). Right now the newest copy wins.
  • You can't remove folder configurations Workaround: delete ~/.local/share/data/Mirall/folders/$alias and restart
  • Some tasks block the GUI (initial setup of watchers)
  • May be some concurrency issues


  • Improve robustness to minimize user interaction
  • Improve feedback and sync results
  • Add support for other folder types: tarsnap, duplicity, git (SparkleShare)


  • Linux (currently it uses inotify to detect file changes)
  • unison installed in the local and remote machine (you should not care if you got Mirall with your favorite distribution)



  • 1-click install available in software.opensuse.org


Source code

Building the source code

You need Qt 4.7 and cmake:

mkdir build
cd build
cmake ..

To generate a tarball:

mkdir build
cd build
cmake ..
make package_source



This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
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