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Radicale vs Tasks.org Server alt nono Calendarserver

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?
RA Radicale Simple, lightweight CalDAV and CardDAV server VS TA Tasks.org Server alt nono Calendarserver Standards-compliant calendar and scheduling server
FeatureRadicaleTasks.org Server alt nono Calendarserver
CategoryGroupwareCalendar & Contacts
LicenseGPL-3.0Apache-2.0
LanguagePythonPython
Setup difficultyEasyHard
Min. RAM64 MB512 MB
Deploymentdocker, bare-metal, sourcebare-metal, source
GitHub stars★ 4,877★ 506
First released20082007
ReplacesGoogle Calendar, iCloudGoogle Calendar, Exchange

Why pick each one

Choose Radicale if…

  • Extremely easy to deploy
  • No database needed
Radicale details

Choose Tasks.org Server alt nono Calendarserver if…

  • Released under the Apache-2.0 license
  • Written in Python
  • Lightweight — runs in 512 MB RAM
Tasks.org Server alt nono Calendarserver details

Frequently asked questions

Is Radicale or Tasks.org Server alt nono Calendarserver better?

Radicale is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Tasks.org Server alt nono Calendarserver if its specific feature set fits your needs better.

Are Radicale and Tasks.org Server alt nono Calendarserver free and open-source?

Yes. Radicale is licensed under GPL-3.0 and Tasks.org Server alt nono Calendarserver under Apache-2.0. Both can be self-hosted at no software cost.

Can I run Radicale and Tasks.org Server alt nono Calendarserver with Docker?

Radicale: yes. Tasks.org Server alt nono Calendarserver: check the project docs for container support.

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