1 Free & Open-Source Calendly Alternatives
Calendly's free plan restricts you to a single event type, which doesn't go far once you need separate links for sales calls, support, and demos. Cal.com is the open-source alternative built around the same calendar-link workflow, without that restriction.
The best Calendly alternatives
Cal.com
Our top pickFreemiumHostedAn open-source scheduling tool with unlimited event types.
Cal.com mirrors Calendly's core workflow — shareable booking links synced to your calendar — while being open-source and self-hostable, so your scheduling data and booking pages live on infrastructure you control if you choose to run it yourself.
- Unlimited event types on the free tier
- Two-way sync with Google, Outlook, and other calendars
- Custom booking-page branding
- Self-hosted or Cal.com's own hosted plan
Licensing and pricing models change over time — confirm current terms on each project's own site before making a procurement or compliance decision.
Frequently asked questions
Is Cal.com actually free, or just open-source?
Both — the hosted version has a genuinely free tier with unlimited event types (Calendly's free plan caps you at one), and the code is also open-source if you'd rather self-host.
Does Cal.com integrate with the same calendars as Calendly?
Yes — Google Calendar, Outlook, and other major calendar providers are supported for two-way sync, so double-bookings are avoided the same way Calendly prevents them.
Can I use my own domain for booking pages?
Yes, custom domains are supported, which is useful if booking links need to match your brand rather than showing a shared scheduling domain.
More free alternatives
Not sure which way to go?
A free Growth Audit can help you weigh self-hosting against the tool you already pay for.