Cal.com
Community-driven, open-source scheduling infrastructure stripped of enterprise code.
The MIT-licensed community edition of Cal.com for personal self-hosters.
Cal.diy is a fully open-source, community-driven scheduling platform designed as a fork of Cal.com without enterprise code. It suits individual self-hosters who want absolute control over their calendar infrastructure without commercial dependencies.
What it is
It provides core scheduling infrastructure built with Next.js, tRPC, and Prisma that runs on your own PostgreSQL database. It removes proprietary features like Teams, Organizations, SSO/SAML, and insights, delivering a streamlined standalone booking tool.
Who it's for
It suits self-hosters and developers comfortable with server administration and database configuration. It does not suit users looking for a managed cloud service or enterprise-ready multi-user organizations.
Key features
No Enterprise Bloat
All commercial code, team management, and SSO features have been stripped out.
T3 Stack Architecture
Built using Next.js, TypeScript, tRPC, Prisma, and Tailwind CSS.
Docker DX Support
Includes a quick-start command using Docker Compose to spin up a local PostgreSQL instance and test users.
Daily.co Integration
Integrates with Daily.co out of the box for video scheduling capabilities.
Up and running in 3 steps
Our honest verdict
What's great
- 100% MIT-licensed codebase with no commercial license key required
- Entirely free of enterprise feature walls and upsell screens
- Includes seed data and quick-start Docker workflow for local testing
- Direct community contribution path without corporate core splits
Where it falls short
- Strictly recommended for personal, non-production use only
- Requires advanced knowledge of server administration and database management
- Windows users must manually handle symlink adjustments and environment file placement
- No official hosted or managed version available; you must run it yourself
Pricing & license
Free and open source under the MIT licence. There is no paid hosted option provided for Cal.diy, so the only cost is running it on your own infrastructure.
Open remote AI-training roles
870 open remote AI-training roles, updated November 14, 2026; most pay $20–$170 an hour. Zekai lists them free; the application goes to the employer’s platform.
Alternatives
These reviewed AI tools do the same job instantly — from our scored directory.
Use it, or have us set it up
FAQ
Is Cal.diy suitable for commercial use?
No, the README explicitly states it is strictly recommended for personal, non-production use, and directs commercial users to Cal.com.
Do I need a Cal.com account to run this?
No, Cal.diy requires no license key or Cal.com account to function.
What database does Cal.diy require?
It requires PostgreSQL version 13 or higher.
