SHSelfHostIndex

DavMail 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?
DA DavMail POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to VS ET ETAR Open-source calendar server companion for events
FeatureDavMailETAR
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-2.0GPL-3.0
LanguageJavaJava
Setup difficultyMediumMedium
Min. RAM512 MB256 MB
Deploymentbare-metaldocker, source
GitHub stars★ 751★ 2,565
First released20202016
Replaces—Google Calendar

Why pick each one

Choose DavMail if…

  • Released under the GPL-2.0 license
  • Written in Java
  • Lightweight — runs in 512 MB RAM
DavMail details

Choose ETAR if…

  • Open ecosystem
  • No vendor lock-in
ETAR details

Frequently asked questions

Is DavMail 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 DavMail and ETAR free and open-source?

Yes. DavMail is licensed under GPL-2.0 and ETAR under GPL-3.0. Both can be self-hosted at no software cost.

Can I run DavMail and ETAR with Docker?

DavMail: check the project docs for container support. ETAR: yes.

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