SHSelfHostIndex

Horde Kronolith vs Decsync Calendar Sync

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 DE Decsync Calendar Sync File-based calendar and contacts synchronization
FeatureHorde KronolithDecsync Calendar Sync
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-2.0GPL-3.0
LanguagePHPKotlin
Setup difficultyHardMedium
Min. RAM256 MB128 MB
Deploymentbare-metalsource, binary
GitHub stars★ 10★ 696
First released20032018
ReplacesGoogle Calendar, ExchangeGoogle Calendar

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 Decsync Calendar Sync if…

  • Server-free architecture
  • Privacy friendly
Decsync Calendar Sync details

Frequently asked questions

Is Horde Kronolith or Decsync Calendar Sync better?

Decsync Calendar Sync is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Horde Kronolith if its specific feature set fits your needs better.

Are Horde Kronolith and Decsync Calendar Sync free and open-source?

Yes. Horde Kronolith is licensed under GPL-2.0 and Decsync Calendar Sync under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Horde Kronolith and Decsync Calendar Sync with Docker?

Horde Kronolith: check the project docs for container support. Decsync Calendar Sync: check the project docs for container support.

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