Cal.com
Open-source scheduling — free, self-hostable, and privacy-first
AppAdvize Score
out of 10 · How we scoreShort answer
Cal.com scores 8.5/10 in our review and is best for privacy-conscious consultants and agencies wanting calendly functionality without the cost and developers wanting an embeddable, api-first scheduling solution. The standout: Open source — self-host for complete data ownership and zero cost. Watch out: Less polished UI than Calendly in some areas. There's a free plan to start with.
Reviewed by the AppAdvize editorial team · last verified March 2026
Overview
Cal.com is an open-source scheduling platform that positions itself as the privacy-respecting, developer-friendly alternative to Calendly. The cloud-hosted version has a generous free plan; the self-hosted version is completely free. Cal.com supports all the core scheduling scenarios — 1:1 booking, round-robin team routing, collective events, and paid bookings via Stripe. Its API and embeddability make it popular with developers and tech-forward businesses. The routing forms feature directs bookers to the right team member based on answers.
Pricing
Free — Free forever on cloud — unlimited event types and bookings
Enterprise plans available on request
Pros & Cons
What we like
- ✓Open source — self-host for complete data ownership and zero cost
- ✓Generous cloud free plan with no artificial booking limits
- ✓Round-robin routing, collective events, and team scheduling built in
- ✓Payment collection via Stripe included
- ✓Developer-friendly API for embedding in products
Watch out for
- ✕Less polished UI than Calendly in some areas
- ✕Self-hosting requires technical knowledge
- ✕Smaller community and fewer native integrations than Calendly
Best for
- Privacy-conscious consultants and agencies wanting Calendly functionality without the cost
- Developers wanting an embeddable, API-first scheduling solution
Not ideal for
- Non-technical users who want white-glove setup (Calendly or Acuity)
- Businesses needing complex intake forms and client management (use Dubsado)
Alternatives
See all Cal.com alternatives, compared →Cal.com FAQ
Is Cal.com worth it?
Cal.com scores 8.5/10 in our review and is a strong fit for privacy-conscious consultants and agencies wanting calendly functionality without the cost. Standout: Open source — self-host for complete data ownership and zero cost. Main trade-off: Less polished UI than Calendly in some areas.
Is Cal.com free?
Cal.com is free to use — Free forever on cloud — unlimited event types and bookings.
What are the best Cal.com alternatives?
Top Cal.com alternatives are Calendly, Acuity Scheduling, Dubsado. See our full comparison at /tools/cal-com/alternatives.
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Quick Facts
- Founded
- 2021
- Users
- 3M+ bookings
- Setup time
- ~15 min
- Complexity
- simple
- Maturity
- growing
Last verified: 2026-03-01