SHSelfHostIndex

Decsync Calendar Sync vs ETAR

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?
DE Decsync Calendar Sync File-based calendar and contacts synchronization VS ET ETAR Open-source calendar server companion for events
FeatureDecsync Calendar SyncETAR
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0GPL-3.0
LanguageKotlinJava
Setup difficultyMediumMedium
Min. RAM128 MB256 MB
Deploymentsource, binarydocker, source
GitHub stars★ 696★ 2,565
First released20182016
ReplacesGoogle CalendarGoogle Calendar

Why pick each one

Choose Decsync Calendar Sync if…

  • Server-free architecture
  • Privacy friendly
Decsync Calendar Sync details

Choose ETAR if…

  • Open ecosystem
  • No vendor lock-in
ETAR details

Frequently asked questions

Is Decsync Calendar Sync or ETAR better?

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

Are Decsync Calendar Sync and ETAR free and open-source?

Yes. Decsync Calendar Sync is licensed under GPL-3.0 and ETAR under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Decsync Calendar Sync and ETAR with Docker?

Decsync Calendar Sync: check the project docs for container support. ETAR: yes.

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