Radicale vs ETAR
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?
Radicale
Simple, lightweight CalDAV and CardDAV server
VS
ETAR
Open-source calendar server companion for events
| Feature | Radicale | ETAR |
|---|---|---|
| Category | Groupware | Calendar & Contacts |
| License | GPL-3.0 | GPL-3.0 |
| Language | Python | Java |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 256 MB |
| Deployment | docker, bare-metal, source | docker, source |
| GitHub stars | ★ 4,877 | ★ 2,565 |
| First released | 2008 | 2016 |
| Replaces | Google Calendar, iCloud | Google Calendar |
Why pick each one
Frequently asked questions
Is Radicale or ETAR better?
Radicale is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider ETAR if its specific feature set fits your needs better.
Are Radicale and ETAR free and open-source?
Yes. Radicale is licensed under GPL-3.0 and ETAR under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Radicale and ETAR with Docker?
Radicale: yes. ETAR: yes.