SHSelfHostIndex

Open Event Server vs Tasks.org Server alt nono Calendarserver

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?
OP Open Event Server Self-hosted event management and ticketing backend VS TA Tasks.org Server alt nono Calendarserver Standards-compliant calendar and scheduling server
FeatureOpen Event ServerTasks.org Server alt nono Calendarserver
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0Apache-2.0
LanguagePythonPython
Setup difficultyHardHard
Min. RAM1,024 MB512 MB
Deploymentdocker, sourcebare-metal, source
GitHub stars★ 3,006★ 506
First released20162007
ReplacesEventbrite, SchedGoogle Calendar, Exchange

Why pick each one

Choose Open Event Server if…

  • Released under the GPL-3.0 license
  • First-class Docker support for quick deployment
  • Active community (3k GitHub stars)
  • Written in Python
Open Event Server 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 Open Event Server or Tasks.org Server alt nono Calendarserver better?

Neither is universally better. Open Event Server has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.

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

Yes. Open Event Server 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 Open Event Server and Tasks.org Server alt nono Calendarserver with Docker?

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

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