SHSelfHostIndex

Calligra Suite vs Citadel

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
CA Calligra Suite Graphic art and office suite from KDE VS CI Citadel All-in-one groupware, mail and collaboration server
FeatureCalligra SuiteCitadel
CategoryOffice SuitesGroupware
LicenseGPL-2.0GPL-3.0
LanguageC++C
Setup difficultyMediumMedium
Min. RAM512 MB512 MB
Deploymentbare-metal, sourcebare-metal, source
GitHub stars★ 300★ 100
First released20111987
ReplacesMicrosoft 365Microsoft Exchange, Microsoft 365

Why pick each one

Choose Calligra Suite if…

  • Fully open source
  • Integrates with KDE
Calligra Suite details

Choose Citadel if…

  • Single-package setup
  • Low resource needs
Citadel details

Frequently asked questions

Is Calligra Suite or Citadel better?

Neither is universally better. Calligra Suite has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are Calligra Suite and Citadel free and open-source?

Yes. Calligra Suite is licensed under GPL-2.0 and Citadel under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Calligra Suite and Citadel with Docker?

Calligra Suite: check the project docs for container support. Citadel: check the project docs for container support.

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