Tasks.org Server alt nono Calendarserver vs Xandikos

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

Not the right match-up?
FeatureTasks.org Server alt nono CalendarserverXandikos
CategoryCalendar & ContactsCalendar & Contacts
LicenseApache-2.0GPL-3.0
LanguagePythonPython
Setup difficultyHardMedium
Min. RAM512 MB64 MB
Deploymentbare-metal, sourcedocker, binary
GitHub stars★ 506★ 593
First released20072016
ReplacesGoogle Calendar, ExchangeGoogle Calendar, iCloud

Why pick each one

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

Choose Xandikos if…

  • Released under the GPL-3.0 license
  • First-class Docker support for quick deployment
  • Written in Python
  • Tiny footprint — runs in 64 MB RAM
Xandikos details

Frequently asked questions

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

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

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

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

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

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

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