SHSelfHostIndex

EteSync DAV vs OpnForm

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?
ET EteSync DAV Local CalDAV bridge for EteSync encrypted accounts VS OP OpnForm Beautiful open-source form builder
FeatureEteSync DAVOpnForm
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0AGPL-3.0
LanguagePythonPHP
Setup difficultyMediumMedium
Min. RAM128 MB512 MB
Deploymentbinary, sourcedocker
GitHub stars★ 333★ 3,545
First released20182026
ReplacesiCloud 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 OpnForm if…

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Active community (3.5k GitHub stars)
  • Written in PHP
OpnForm details

Frequently asked questions

Is EteSync DAV or OpnForm better?

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

Are EteSync DAV and OpnForm free and open-source?

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

Can I run EteSync DAV and OpnForm with Docker?

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

Related comparisons