Cozy Contacts vs Calcom Calendar
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?
Cozy Contacts
Contacts management app for the Cozy personal server
VS
Calcom Calendar
Open-source scheduling and appointment booking platform
| Feature | Cozy Contacts | Calcom Calendar |
|---|---|---|
| Category | Groupware | Groupware |
| License | AGPL-3.0 | AGPL-3.0 |
| Language | JavaScript | TypeScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 1,024 MB |
| Deployment | source | docker, bare-metal, source |
| GitHub stars | ★ 11 | ★ 47,334 |
| First released | 2018 | 2021 |
| Replaces | Google Contacts | Calendly, Doodle |
Why pick each one
Choose Cozy Contacts if…
- Released under the AGPL-3.0 license
- Written in JavaScript
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is Cozy Contacts or Calcom Calendar better?
Neither is universally better. Calcom Calendar has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Cozy Contacts and Calcom Calendar free and open-source?
Yes. Cozy Contacts is licensed under AGPL-3.0 and Calcom Calendar under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Cozy Contacts and Calcom Calendar with Docker?
Cozy Contacts: check the project docs for container support. Calcom Calendar: yes.