Agenda vs Tymeslot
| Tagline | Node.js job scheduling library with persistent MongoDB-backed queue | Elixir/Phoenix meeting scheduling platform you can self-host |
| Category | Scheduling & Booking | Scheduling & Booking |
| Replaces | Calendly | Calendly |
| GitHub stars | 9.7k | 159 |
| Language | TypeScript | Elixir |
| License | MIT | Elastic-2.0 |
| Self-host difficulty | 3/5 Moderate | 3/5 Moderate |
| Deploy options | Manual Docker | Docker Docker Compose Manual |
| Managed hosting | ||
| Last updated | 8 days ago | 4 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.
Agenda
- Library only — no UI for managing or viewing scheduled jobs without additional tooling
- Requires MongoDB; not suitable for simple SQLite/Postgres-only stacks
- No native support for distributed locking at high scale
Tymeslot
- Younger and smaller project than Cal.com, with a more limited integration and app ecosystem.
- Licensed under the Elastic License 2.0, which is source-available rather than OSI-approved open source and restricts offering it as a competing managed service.
- Fewer calendar providers and payment options than mature commercial tools.
- Self-hosting requires an Elixir/OTP and PostgreSQL setup, which is less familiar to many ops teams.
Bottom line
Both are a similar lift to self-host; choose Agenda for the larger community and ecosystem. Tymeslot has seen more recent development. Open each guide below for deploy steps and the full feature gap.