SHSelfHostIndex

OpenSlides vs Tasks.org CalDAV Sync

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 OpenSlides Presentation and assembly system for managing and projecting agenda, VS TA Tasks.org CalDAV Sync Open-source calendar and task sync client for Android
FeatureOpenSlidesTasks.org CalDAV Sync
CategoryCalendar & ContactsCalendar & Contacts
LicenseMITGPL-3.0
LanguageShellKotlin
Setup difficultyMediumEasy
Min. RAM512 MB128 MB
Deploymentdockerbinary, source
GitHub stars★ 629★ 2,784
First released20262013
Replaces—Google Calendar Sync, iCloud sync

Why pick each one

Choose OpenSlides if…

  • Released under the MIT license
  • First-class Docker support for quick deployment
  • Written in Shell
  • Lightweight — runs in 512 MB RAM
OpenSlides details

Choose Tasks.org CalDAV Sync if…

  • Released under the GPL-3.0 license
  • Easy to set up — beginner-friendly
  • Active community (2.8k GitHub stars)
  • Written in Kotlin
Tasks.org CalDAV Sync details

Frequently asked questions

Is OpenSlides or Tasks.org CalDAV Sync better?

Tasks.org CalDAV Sync is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider OpenSlides if its specific feature set fits your needs better.

Are OpenSlides and Tasks.org CalDAV Sync free and open-source?

Yes. OpenSlides is licensed under MIT and Tasks.org CalDAV Sync under GPL-3.0. Both can be self-hosted at no software cost.

Can I run OpenSlides and Tasks.org CalDAV Sync with Docker?

OpenSlides: yes. Tasks.org CalDAV Sync: check the project docs for container support.

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