Kopano Groupware Core vs ZenTao

A side-by-side comparison of two self-hosted groupware options — licensing, setup difficulty, resource needs, and what each one replaces.

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FeatureKopano Groupware CoreZenTao
CategoryGroupwareGroupware
LicenseAGPL-3.0AGPL-3.0
LanguageC++PHP
Setup difficultyHardMedium
Min. RAM2,048 MB1,024 MB
Deploymentdocker, bare-metaldocker, bare-metal
GitHub stars★ 60★ 1,665
First released20162009
ReplacesMicrosoft ExchangeJira, Confluence

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 ZenTao if…

  • Comprehensive feature set
  • Active development
ZenTao details

Frequently asked questions

Is Kopano Groupware Core or ZenTao better?

ZenTao is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Kopano Groupware Core if its specific feature set fits your needs better.

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

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

Can I run Kopano Groupware Core and ZenTao with Docker?

Kopano Groupware Core: yes. ZenTao: yes.

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