SHSelfHostIndex

Cal.diy 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?
CA Cal.diy Online appointment scheduling system VS TA Tasks.org CalDAV Sync Open-source calendar and task sync client for Android
FeatureCal.diyTasks.org CalDAV Sync
CategoryCalendar & ContactsCalendar & Contacts
LicenseMITGPL-3.0
LanguageTypeScriptKotlin
Setup difficultyMediumEasy
Min. RAM512 MB128 MB
Deploymentbare-metalbinary, source
GitHub stars★ 47,334★ 2,784
First released20262013
Replaces—Google Calendar Sync, iCloud sync

Why pick each one

Choose Cal.diy if…

  • Released under the MIT license
  • Mature project with 47.3k GitHub stars
  • Written in TypeScript
  • Lightweight — runs in 512 MB RAM
Cal.diy 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 Cal.diy or Tasks.org CalDAV Sync better?

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

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

Yes. Cal.diy 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 Cal.diy and Tasks.org CalDAV Sync with Docker?

Cal.diy: check the project docs for container support. Tasks.org CalDAV Sync: check the project docs for container support.

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