OSS Discovery

UN
Global
BACKEND & API
SELF-HOSTABLE
ACTIVELY MAINTAINED
FREEMIUM
Cal.com

CAL.COM

Cal.com, the open-source community edition, empowers self-hosters with a robust scheduling platform. Cal.diy simplifies appointment booking, integrates seamlessly, and enhances team collaboration. For commercial and enterprise-ready scheduling infrastructure, choose Cal.com, hosted by us or explore on-prem enterprise access at <a href="https://cal.com/sales">cal.com/sales</a>.

GITHUB STARS
42k
+12% this month
FORKS
13k
Active community
LAST PUSH
Apr 24, 2026
High momentum
WATCHERS
181
Tracking updates
LICENSE
MIT
Commercial use
Cal.com, the open-source community edition, empowers self-hosters with a robust scheduling platform. Cal.diy simplifies appointment booking, integrates seamlessly, and enhances team collaboration. For commercial and enterprise-ready scheduling infrastructure, choose Cal.com, hosted by us or explore on-prem enterprise access at <a href="https://cal.com/sales">cal.com/sales</a>.

High Performance

Built for speed and minimal overhead.

Self-hostable

Docker, Kubernetes, or bare metal

Developer Native

Programmable via any language workflow

SUPPORTED LANGUAGES

TypeScript
TypeScript
CSS
CSS
HTML
HTML
PLpgSQL
PLpgSQL
JavaScript
JavaScript
MDX
MDX
Mermaid
Mermaid
Apex
Apex
Shell
Shell
Dockerfile
Dockerfile
PHP
PHP
Procfile
Procfile

VISUAL INTERFACE

Screenshot 1
Screenshot 2
Screenshot 3

The Quick Glance

Status
Active
Category
Backend & API
Pricing
Freemium
Self-Hosted
Yes
Available on
Web
Latest Release
v6.2.0
Mar 1, 2026

Relative Standing — across 1,284 tools

STARS42k
Top 7% globally
FORKS13k
Top 2% in Open Source
ACTIVITYHigh
Top 32% Activity
WATCHERS181
Top 20% Community