Kopano Groupware Core vs WildDuck

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureKopano Groupware CoreWildDuck
CategoryGroupwareMail Servers
LicenseAGPL-3.0EUPL-1.2
LanguageC++JavaScript
Setup difficultyHardHard
Min. RAM2,048 MB1,024 MB
Deploymentdocker, bare-metaldocker, bare-metal
GitHub stars★ 60★ 2,107
First released20162017
ReplacesMicrosoft ExchangeMicrosoft Exchange, Gmail

Why pick each one

Choose Kopano Groupware Core if…

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Written in C++
Kopano Groupware Core details

Choose WildDuck if…

  • API-driven management
  • Horizontally scalable
WildDuck details

Frequently asked questions

Is Kopano Groupware Core or WildDuck better?

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

Are Kopano Groupware Core and WildDuck free and open-source?

Yes. Kopano Groupware Core is licensed under AGPL-3.0 and WildDuck under EUPL-1.2. Both can be self-hosted at no software cost.

Can I run Kopano Groupware Core and WildDuck with Docker?

Kopano Groupware Core: yes. WildDuck: yes.

Related comparisons