SHSelfHostIndex

Open Event Server vs vdirsyncer

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 VD vdirsyncer Synchronize calendars and contacts via CalDAV/CardDAV
FeatureOpen Event Servervdirsyncer
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0BSD-3-Clause
LanguagePythonPython
Setup difficultyHardMedium
Min. RAM1,024 MB64 MB
Deploymentdocker, sourcebinary, source
GitHub stars★ 3,006★ 1,859
First released20162014
ReplacesEventbrite, SchediCloud sync

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 vdirsyncer if…

  • Released under the BSD-3-Clause license
  • Active community (1.9k GitHub stars)
  • Written in Python
  • Tiny footprint — runs in 64 MB RAM
vdirsyncer details

Frequently asked questions

Is Open Event Server or vdirsyncer better?

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

Are Open Event Server and vdirsyncer free and open-source?

Yes. Open Event Server is licensed under GPL-3.0 and vdirsyncer under BSD-3-Clause. Both can be self-hosted at no software cost.

Can I run Open Event Server and vdirsyncer with Docker?

Open Event Server: yes. vdirsyncer: check the project docs for container support.

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