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Cal.com
Open-source scheduling infrastructure for individuals and teams
95 reviews
Free tierHas API
The best open-source Calendly alternative. Free self-hosting is genuine — not crippled. Cloud version is competitive too. If you value data ownership, Cal.com is the clear choice.
What's great
- Open-source and self-hostable
- No feature limits on self-hosted
- Great API for developers
Watch out for
- Smaller brand recognition than Calendly
- Self-hosting requires technical skill
- Fewer native integrations
Quick Facts
Founded2021
PricingFrom $12/user/mo (cloud)
Free tierYes
PlatformsWeb, Self-hosted
APIAvailable
CategoryOther
Q: What is Cal.com?
Cal.com is the open-source Calendly alternative.
Q: How much does Cal.com cost?
Cal.com starts at $12/user/mo (cloud). A free tier is available with Free (unlimited, self-hosted).
Q: Who is Cal.com best for?
Cal.com is best for developers and teams wanting open-source scheduling.
Q: Is Cal.com free?
Cal.com offers a freemium model with a free tier. Paid plans start at $12/user/mo (cloud).
Best for
Developers and teams wanting open-source scheduling
Not ideal for
Non-technical users who just want it to work
Free
Free (unlimited, self-hosted)
Starter
$12/user/mo (cloud)
Pro
$25/user/mo
Enterprise
Custom
1
2
3
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AICores Editorial Review
Reviewed by AICores Editorial Team
Last updated: May 2026
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