SHSelfHostIndex

OpenCalendar Sync vs Nextcloud Tasks

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 OpenCalendar Sync Self-hosted shared calendar with public event pages VS NE Nextcloud Tasks CalDAV task list app for Nextcloud
FeatureOpenCalendar SyncNextcloud Tasks
CategoryCalendar & ContactsCalendar & Contacts
LicenseMITAGPL-3.0
LanguageTypeScriptJavaScript
Setup difficultyMediumEasy
Min. RAM256 MB512 MB
Deploymentdocker, sourcesource
GitHub stars★ 852★ 701
First released20142016
ReplacesCalendly, Google CalendarGoogle Tasks, Todoist

Why pick each one

Choose OpenCalendar Sync if…

  • Released under the MIT license
  • First-class Docker support for quick deployment
  • Written in TypeScript
  • Tiny footprint — runs in 256 MB RAM
OpenCalendar Sync details

Choose Nextcloud Tasks if…

  • Released under the AGPL-3.0 license
  • Easy to set up — beginner-friendly
  • Written in JavaScript
  • Lightweight — runs in 512 MB RAM
Nextcloud Tasks details

Frequently asked questions

Is OpenCalendar Sync or Nextcloud Tasks better?

Neither is universally better. OpenCalendar Sync has the larger community, while Nextcloud Tasks is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are OpenCalendar Sync and Nextcloud Tasks free and open-source?

Yes. OpenCalendar Sync is licensed under MIT and Nextcloud Tasks under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run OpenCalendar Sync and Nextcloud Tasks with Docker?

OpenCalendar Sync: yes. Nextcloud Tasks: check the project docs for container support.

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