1. Cal.com
🏆 Best overallThe open-source Calendly alternative you can self-host.
Pricing: Free for individuals. Teams $12/user/mo, Organizations $28/user/mo (verified Jul 6, 2026). Self-hostable (open source).
Pros
- ✔Open source — self-host and own it
- ✔Generous free individual plan
- ✔Highly customizable & API-first
Cons
- ✕Self-hosting is technical
- ✕Cloud teams pricing similar to Calendly
- ✕Younger polish in places
Cal.com is the open-source answer to Calendly, and it's the natural switch for anyone whose gripe is lock-in or the crippled free plan. Its free individual tier includes unlimited event types (versus Calendly's one), it's fully API-first and white-labelable, and you can self-host it to own your scheduling outright. Team cloud pricing lands close to Calendly's, so the savings are biggest for individuals or self-hosters. Self-hosting takes technical effort, and some corners are less polished than Calendly. But for an open, customizable, developer-friendly scheduler, Cal.com is the standout, and importing your event types is quick.