# Cal.com: Free Open Source Alternative to Calendesk, Savvycal, Sessions

Canonical: https://caniforkit.com/fork/cal-com
Last updated: 2026-11-07

Cal.com (Open Source, Open Source) replaces Calendesk, Savvycal, Sessions. Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

## Tool Specifications
- **Tool Name**: Cal.com
- **Type**: Open Source Project
- **License**: Open Source
- **Official Website**: https://cal.diy/
- **GitHub Repository**: https://github.com/calcom/cal.diy
- **GitHub Stars**: ★ 49.8k
- **Runs On**: Self-host
- **Maintenance Status**: nov 2026
- **Platforms**: web, self-hosted, docker to self-host
- **Data Storage**: All application data and configuration live on your own server or local database.
- **Installation**: Clone https://github.com/calcom/cal.diy or deploy with Docker Compose
- **Setup Requirements**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **The Catch / Limitation**: Requires self-hosting setup, updates, and server maintenance compared to managed Calendesk.

## Paid SaaS Applications Replaced (3)
Replacing these paid tools with Cal.com saves up to $30/mo ($360/yr) in software subscriptions:

| Replaced Software | Category | SaaS Price | Comparison Guide |
| --- | --- | --- | --- |
| [Calendesk](https://caniforkit.com/calendesk) | [scheduling](https://caniforkit.com/category/scheduling) | $10/mo | [Compare Calendesk vs Cal.com](https://caniforkit.com/vs/calendesk-vs-cal-com) |
| [Savvycal](https://caniforkit.com/savvycal) | [scheduling](https://caniforkit.com/category/scheduling) | $10/mo | [Compare Savvycal vs Cal.com](https://caniforkit.com/vs/savvycal-vs-cal-com) |
| [Sessions](https://caniforkit.com/sessions) | [scheduling](https://caniforkit.com/category/scheduling) | $10/mo | [Compare Sessions vs Cal.com](https://caniforkit.com/vs/sessions-vs-cal-com) |

## Frequently Asked Questions

### Is Cal.com free and open source?
Cal.com is an open source tool licensed under Open Source that runs on self-host. Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

### What is the trade-off or limitation of using Cal.com?
Requires self-hosting setup, updates, and server maintenance compared to managed Calendesk.

## Related

- [Self-Hosted Open Source Directory](https://caniforkit.com/self-hosted)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Software Categories Directory](https://caniforkit.com/categories)
- [Homepage](https://caniforkit.com)