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System requirements

__Note__: The configurations described below are what we use and test against. This means that other configurations might also work but we do not provide any official support for them.



  • __Memory:__ 4096 MB
  • __Free disc space:__ 2 GB

Operating system

Distribution (64 bits only) | Identifier | init system
CentOS/RHEL 7.x | centos-7 | systemd
Debian 9 Stretch | debian-9 | systemd
Suse Linux Enterprise Server 12 | sles-12 | sysvinit
Ubuntu 16.04 Xenial Xerus | ubuntu-16.04 | upstart
Ubuntu 18.04 Bionic Beaver | ubuntu-18.04 | systemd


  • __Runtime:__ [Ruby]( Version = 2.6.x
  • __Webserver:__ [Apache]( or [nginx](
  • __Application server:__ [Phusion Passenger]( or [Unicorn](
  • __Database__: [PostgreSQL]( Version >= 9.5

Please be aware that the dependencies listed above also have a lot of dependencies themselves.


OpenProject supports the latest versions of the major browsers. In our strive to make OpenProject easy and fun to use we had to drop support for some older browsers (e.g. IE 11).

  • [Mozilla Firefox]( (At least ESR version 60)
  • [Microsoft Edge](
  • [Google Chrome](

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