Bracket vs Cal.com
| Tagline | Flexible self-hosted tournament management with live public rankings | Scheduling infrastructure for everyone, the open-source Calendly alternative |
| Category | Scheduling & Booking | Scheduling & Booking |
| Replaces | Calendly, Acuity Scheduling | Calendly, Acuity Scheduling |
| GitHub stars | 1.7k | 48k |
| Language | Docker | TypeScript |
| License | AGPL-3.0 | AGPL-3.0 |
| Self-host difficulty | 3/5 Moderate | 3/5 Moderate |
| Deploy options | Docker Docker Compose Manual | One-Click Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 4 days ago | yesterday |
| 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.com
- Some enterprise features (e.g. SAML SSO, advanced admin/insights, certain platform features) are gated behind a commercial/EE license even when self-hosting.
- Self-hosting requires PostgreSQL plus configuring numerous environment variables and OAuth credentials for calendar integrations.
- The core code is AGPL-3.0, which imposes copyleft obligations on modified network deployments.
- Upgrades between major versions occasionally require manual database migration work.
Bottom line
Both are a similar lift to self-host; choose Cal.com for the larger community and ecosystem. Cal.com has seen more recent development. Open each guide below for deploy steps and the full feature gap.
Cal.com
Scheduling infrastructure for everyone, the open-source Calendly alternative