AgenDAV vs Horde Kronolith
A side-by-side comparison of two self-hosted calendar & contacts options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | AgenDAV | Horde Kronolith |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 81 · Excellent | 69 · Good |
| Category | Calendar & Contacts | Calendar & Contacts |
| License | GPL-3.0 | GPL-2.0 |
| Language | PHP | PHP |
| Setup difficulty | Medium | Hard |
| Min. RAM | 128 MB | 256 MB |
| Deployment | bare-metal, docker | bare-metal |
| GitHub stars | ★ 826 | ★ 10 |
| First released | 2011 | 2003 |
| Replaces | Google Calendar | Google Calendar, Exchange |
What are AgenDAV and Horde Kronolith?
AgenDAV
AgenDAV is a CalDAV web client that lets users manage and share calendars stored on a CalDAV server. It provides a responsive Ajax interface with drag-and-drop event editing.
- CalDAV web frontend
- Drag-and-drop event editing
- Calendar sharing
Horde Kronolith
Kronolith is the calendar component of the Horde groupware framework. It provides shared calendars, event management, and supports CalDAV synchronization with desktop and mobile clients.
- Part of Horde groupware
- Shared calendar support
- CalDAV synchronization
AgenDAV vs Horde Kronolith: key differences
Both projects are written in PHP. Licensing differs — GPL-3.0 for AgenDAV versus GPL-2.0 for Horde Kronolith. AgenDAV is the lighter option, starting around 128 MB of RAM against 256 MB for Horde Kronolith. Horde Kronolith is the more established project (first released 2003), while AgenDAV arrived in 2011. AgenDAV has the considerably larger community, at 826 GitHub stars versus 10. AgenDAV lists first-class Docker deployment; Horde Kronolith does not.
Why pick each one
Choose AgenDAV if…
- Released under the GPL-3.0 license
- First-class Docker support for quick deployment
- Written in PHP
- Tiny footprint — runs in 128 MB RAM
Choose Horde Kronolith if…
- Released under the GPL-2.0 license
- Written in PHP
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is AgenDAV or Horde Kronolith better?
AgenDAV 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 AgenDAV and Horde Kronolith free and open-source?
Yes. AgenDAV is licensed under GPL-3.0 and Horde Kronolith under GPL-2.0. Both can be self-hosted at no software cost.
Can I run AgenDAV and Horde Kronolith with Docker?
AgenDAV: yes. Horde Kronolith: check the project docs for container support.
Which is lighter on resources, AgenDAV or Horde Kronolith?
AgenDAV has the smaller minimum footprint at 128 MB of RAM, compared to about 256 MB for Horde Kronolith. Real-world usage depends on library size, user count, and enabled features.