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calcom/cal.diy

★ 49,937TypeScriptMIT92

Scheduling infrastructure for absolutely everyone.

What it is

[!WARNING] Use at your own risk. Cal.diy is the open source community edition of Cal.com and it is intended for users who want to self-host their own Cal.diy instance. It is strictly recommended for personal, non-production use. Please review all installation and configuration steps carefully. Self-hosting requires advanced knowledge of server administration, database management, and securing sensitive data. Proceed only if you are comfortable with these responsibilities.

When to use it

Reach for cal.diy when you'd rather own a ready-made product (analytics, CMS, CRM…) than pay for SaaS — it's written in TypeScript and fits stacks tagged next-auth, nextjs, postgres, prisma.

Category
Self-hosted Apps
Also in
Databases & ORMs, Auth & Payments
Stars
49,937
Forks
15,619
Last push
today
Created
2021-03-22
Open issues
1,630
Website
cal.diy
#next-auth#nextjs#postgres#prisma#t3-stack#tailwind#trpc#turborepo#typescript#zod#auth

Quick start

$ git clone https://github.com/calcom/cal.diy.git

Hand it to your AI

Read https://ideas.asveas.com/r/calcom/cal.diy.md and help me add calcom/cal.diy to my project. Explain the setup steps for my stack and show the minimal code to get it working.
Self-hosted AppsMarkdown .mdOpen on GitHub ↵

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FAQ

What is cal.diy?

calcom/cal.diy is a self-hostable app on GitHub: Scheduling infrastructure for absolutely everyone. [!WARNING] Use at your own risk.

When should I use cal.diy?

Reach for cal.diy when you'd rather own a ready-made product (analytics, CMS, CRM…) than pay for SaaS — it's written in TypeScript and fits stacks tagged next-auth, nextjs, postgres, prisma.

What are the best alternatives to cal.diy?

Popular alternatives in Self-hosted Apps: louislam/uptime-kuma (93.5k★), hoppscotch/hoppscotch (80.8k★), grafana/grafana (77.8k★), strapi/strapi (73.5k★), twentyhq/twenty (60.8k★).

Is cal.diy actively maintained?

calcom/cal.diy looks very actively maintained: the last push was today (2026-11-11), with 49,937 stars and 1,630 open issues.

What license does cal.diy use?

calcom/cal.diy is published under the MIT license. Check the repository's LICENSE file before commercial use.