Radicale vs ZenTao
A side-by-side comparison of two self-hosted groupware options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Radicale
Simple, lightweight CalDAV and CardDAV server
VS
ZenTao
Open-source project and team collaboration platform
| Feature | Radicale | ZenTao |
|---|---|---|
| Category | Groupware | Groupware |
| License | GPL-3.0 | AGPL-3.0 |
| Language | Python | PHP |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 1,024 MB |
| Deployment | docker, bare-metal, source | docker, bare-metal |
| GitHub stars | ★ 4,877 | ★ 1,665 |
| First released | 2008 | 2009 |
| Replaces | Google Calendar, iCloud | Jira, Confluence |
Why pick each one
Frequently asked questions
Is Radicale or ZenTao better?
Radicale is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider ZenTao if its specific feature set fits your needs better.
Are Radicale and ZenTao free and open-source?
Yes. Radicale is licensed under GPL-3.0 and ZenTao under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Radicale and ZenTao with Docker?
Radicale: yes. ZenTao: yes.