Appointment booking
Cal.com
Open-source scheduling — self-host the whole thing.
open source self-hostable EU region available Cal.com Inc. · USBooking pages, team scheduling and integrations; the US company also hosts it.
Website ↗ Source ↗ Plan “Appointment booking” with it
How you can run it
| Way | Where the data lives | Price basis | Verdict |
|---|---|---|---|
| Host it myself | your own server or hardware | free | green — You run it yourself: no data leaves your own infrastructure. |
| Hosted in Europe | region selectable (Europe available) | ≈ €12/mo per seat | red — Cal.com Inc. is outside Europe, even when the servers are not. |
| Hosted outside Europe | region selectable (Europe available) | ≈ €12/mo per seat | red — Hosted outside Europe: your data sits under non-European jurisdiction. |
Facts
| Company / project | Cal.com Inc. (US) |
|---|---|
| Licence | AGPL-3.0 |
| Self-hosting footprint | 1024 MB RAM · 0.5 vCPU · 2 GB — small deployment: a household or a team of up to ~20 people |
| Commonly replaces | Calendly |
| Provenance | curated, verified 2026-09-04 |
Machine-readable: /api/tools/cal-com.json. Something wrong? Tell us.