EteSync DAV 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?
FeatureEteSync DAVETAR
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0GPL-3.0
LanguagePythonJava
Setup difficultyMediumMedium
Min. RAM128 MB256 MB
Deploymentbinary, sourcedocker, source
GitHub stars★ 333★ 2,565
First released20182016
ReplacesiCloud CalendarGoogle Calendar

Why pick each one

Choose EteSync DAV if…

  • Released under the GPL-3.0 license
  • Written in Python
  • Tiny footprint — runs in 128 MB RAM
EteSync DAV details

Choose ETAR if…

  • Open ecosystem
  • No vendor lock-in
ETAR details

Frequently asked questions

Is EteSync DAV 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 EteSync DAV and ETAR free and open-source?

Yes. EteSync DAV is licensed under GPL-3.0 and ETAR under GPL-3.0. Both can be self-hosted at no software cost.

Can I run EteSync DAV and ETAR with Docker?

EteSync DAV: check the project docs for container support. ETAR: yes.

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