Cal.diy vs Seatsurfing
Both Cal.diy and Seatsurfing are self-hosted alternatives to Calendly. Both are filed under Booking and Scheduling.
Side by side
| Field | Cal.diy | Seatsurfing |
|---|---|---|
| Description | Online appointment scheduling system. | Webbased app to book seats, desks and rooms for offices. |
| GitHub stars | 49,654 | 316 |
| License | MIT | GPL-3.0 |
| Platforms | Nodejs | Docker |
| Latest release | v6.2.0, 1 March 2026 | v1.140.0, 31 October 2026 |
| Repository activity | 2 November 2026 | 2 November 2026 |
| Health | Active | Active |
| Categories | Booking and Scheduling | Booking and Scheduling |
| Website | https://cal.diy/ | https://seatsurfing.app/ |
| Source code | https://github.com/calcom/cal.diy | https://github.com/seatsurfing/seatsurfing |
Where the records differ
Computed from the two records above: a line appears only where the dataset states a figure, a date or a set relation, and no line recommends one application over the other.
- Cal.diy has more GitHub stars in the dataset, 49,654 against 316.
- Both repositories last recorded activity on 2 November 2026.
- Seatsurfing has the newer stable release on record: v1.140.0, 31 October 2026, against v6.2.0, 1 March 2026.
- Licenses differ: Cal.diy is listed under MIT; Seatsurfing under GPL-3.0.
- Platforms differ: Cal.diy lists Nodejs; Seatsurfing lists Docker.
- Both are filed under the same categories: Booking and Scheduling.