Bracket vs Cal.diy
| Tagline | Flexible self-hosted tournament management with live public rankings | Open-source online appointment scheduling built on Cal.com |
| Category | Scheduling & Booking | Scheduling & Booking |
| Replaces | Calendly, Acuity Scheduling | Calendly, Acuity Scheduling |
| GitHub stars | 1.7k | 46k |
| Language | Docker | Nodejs |
| License | AGPL-3.0 | MIT |
| Self-host difficulty | 3/5 Moderate | 3/5 Moderate |
| Deploy options | Docker Docker Compose Manual | Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 2 days ago | 2 days ago |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
Bracket
- No built-in calendar integration or iCal/Google Calendar sync for match schedules
- Payment collection for entry fees is absent
- Email or SMS notifications to participants are not supported out of the box
- Limited reporting and export options compared to dedicated event-management SaaS
Cal.diy
- Self-hosted setup requires configuring PostgreSQL, email/SMTP, and OAuth providers
- Enterprise features (SAML SSO, workflows at scale, analytics) are cloud-only or require an enterprise license
- Payment collection integrations need additional third-party setup
- Admin UI for multi-tenant management is less polished than Calendly's hosted offering
Bottom line
Both are a similar lift to self-host; choose Cal.diy for the larger community and ecosystem. Open each guide below for deploy steps and the full feature gap.