OpenProject vs PMB

A side-by-side comparison of two self-hosted project management & tasks options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureOpenProjectPMB
CategoryProject Management & TasksProject Management & Tasks
LicenseGPL-3.0CECILL-2.0
LanguageRuby
Setup difficultyHardMedium
Min. RAM2,048 MB40 MB
Deploymentdocker, bare-metalbare-metal
GitHub stars★ 15,794
First released20122025
ReplacesJira, Asana

Why pick each one

Choose OpenProject if…

  • Very feature-complete
  • Good for classic project management
  • Strong permissions
OpenProject details

Choose PMB if…

  • Released under the CECILL-2.0 license
  • Tiny footprint — runs in 40 MB RAM
PMB details

Frequently asked questions

Is OpenProject or PMB better?

Neither is universally better. OpenProject has the larger community, while PMB is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are OpenProject and PMB free and open-source?

Yes. OpenProject is licensed under GPL-3.0 and PMB under CECILL-2.0. Both can be self-hosted at no software cost.

Can I run OpenProject and PMB with Docker?

OpenProject: yes. PMB: check the project docs for container support.

Related comparisons