SHSelfHostIndex

Horde Kronolith vs Tasks.org Server alt nono Calendarserver

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?
HO Horde Kronolith Calendar application from the Horde groupware suite VS TA Tasks.org Server alt nono Calendarserver Standards-compliant calendar and scheduling server
FeatureHorde KronolithTasks.org Server alt nono Calendarserver
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-2.0Apache-2.0
LanguagePHPPython
Setup difficultyHardHard
Min. RAM256 MB512 MB
Deploymentbare-metalbare-metal, source
GitHub stars★ 10★ 506
First released20032007
ReplacesGoogle Calendar, ExchangeGoogle Calendar, Exchange

Why pick each one

Choose Horde Kronolith if…

  • Released under the GPL-2.0 license
  • Written in PHP
  • Tiny footprint — runs in 256 MB RAM
Horde Kronolith details

Choose Tasks.org Server alt nono Calendarserver if…

  • Released under the Apache-2.0 license
  • Written in Python
  • Lightweight — runs in 512 MB RAM
Tasks.org Server alt nono Calendarserver details

Frequently asked questions

Is Horde Kronolith or Tasks.org Server alt nono Calendarserver better?

Neither is universally better. Tasks.org Server alt nono Calendarserver has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.

Are Horde Kronolith and Tasks.org Server alt nono Calendarserver free and open-source?

Yes. Horde Kronolith is licensed under GPL-2.0 and Tasks.org Server alt nono Calendarserver under Apache-2.0. Both can be self-hosted at no software cost.

Can I run Horde Kronolith and Tasks.org Server alt nono Calendarserver with Docker?

Horde Kronolith: check the project docs for container support. Tasks.org Server alt nono Calendarserver: check the project docs for container support.

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