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calendso

The premium Open Source alternative to Calendly

🎯 Best for:Developers requiring deep integration and data sovereignty.
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MITLicense

What is calendso?

A self-hosted alternative to Calendly. Built with Next.js and Prisma for full data ownership and API-first integration.

Tech Stack
TypeScriptCalendar & Scheduling

Why calendso?

  • • Extensive API and webhooks
  • • Self-hosting capability
  • • Modular architecture

Limitations

  • • Complex initial configuration
  • • Resource intensive
  • • Enterprise features require license
8/22/2025
Last Update
10
Forks
9
Issues
MIT
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to calendso instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Calendly)
Self-Hosted
$0
/ year
Team Size10 Users
150+
Launch Detailed Calculator
SAVE 100%

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