What is Cal.com?

Answer

About Cal.com

Cal.com is the open-source scheduling infrastructure.

The open-source scheduling infrastructure. Cal.com is an open-source Calendly alternative for scheduling and infrastructure for everything calendar-related. Self-hostable.

Source

This answer is drawn from the Cal.com listing on Startup Spotlight, last updated May 20, 2026. For the full profile, see the Cal.com listing.

Other questions about Cal.com

• Who founded Cal.com?

  Cal.com was founded by Peer Richelsen.

• When was Cal.com launched?

  Cal.com launched in 2021.