Cal.com
Cal.com, Inc. · Coding · Productivity
Cal.com is an open source scheduling platform for booking meetings, with unlimited free event types, team routing, and a developer API.
About Cal.com
What Is Cal.com
Cal.com is a scheduling platform that turns availability into a shareable booking link. Visitors pick a slot that fits your calendar, and the tool handles confirmations, reminders, and timezone math in the background.
It started in 2021 as an open source answer to Calendly. The early pitch was that scheduling should be infrastructure developers can embed, not a closed app that sits apart from everything else. You can use the hosted version, or self-host the code yourself.
The limits show up once money and scale enter the picture. The free plan covers one person, while shared availability fixes like round-robin routing sit behind the Teams and Organizations tiers. Self-hosting gives you control, but you take on the servers, upgrades, and security work yourself.
Getting Started
- Create an account at app.cal.com, then connect the calendars you already use, such as Google Calendar or Outlook.
- Set your weekly availability and timezone so the booking page knows when you are free.
- Create an event type, give it a length like 30 minutes, and choose where the meeting happens, such as Zoom, Google Meet, or a phone call.
- Share your booking link, embed it on your site, or connect a booking page to an app you work in.
- Collect bookings, and let Cal.com send confirmations, reminders, and follow-ups automatically.
Product Information
A quick look at Cal.com's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Freelancers and consultants who sell their time
- Sales and customer success teams
- Developers and product teams
Tasks
- Sharing a bookable link instead of trading emails
- Coordinating meetings across several people or timezones
- Collecting payment or a deposit before a call
Scenarios
- Running a lean service business
- Embedding scheduling inside a product
- Scaling a sales floor with hundreds of meetings
Key features
Unlimited free scheduling
The free plan is not a stripped-down demo. One user gets unlimited event types, unlimited calendar connections, and unlimited meetings, which is more than many rivals offer on paid tiers.
Team and routing tools
Round-robin scheduling spreads bookings across a pool of teammates by availability and priority. Routing forms and attribute based routing send each booking to the right person or team, which matters once a company runs at volume.
Open source core
Cal.com publishes its code, so teams can inspect it, self-host it, or build on top of it. That openness is the main thing that sets it apart from closed scheduling apps, even as the company keeps enterprise features under its own roof.
Payments at booking
Stripe and PayPal support let you charge before a meeting is confirmed. That fits tutors, clinics, and consultants who need a deposit in place before a slot is locked.
Broad calendar and video integrations
The platform connects to Google Calendar, Outlook, Apple Calendar, and Zoho, plus video tools including Zoom, Google Meet, and Microsoft Teams. Personal calendars and meeting links stay in sync without copy and paste.
Developer API and embed
A versioned API with API key and OAuth access, plus embeddable widgets, lets developers put scheduling into their own products. The API supports bookings, event types, and availability, so an app can drive the whole booking flow.
Pros and cons
Pros
- A genuinely useful free plan with unlimited event types and meetings, not a trial.
- Open source core you can inspect, self-host, and extend, which closed rivals don't allow.
- Team features like round-robin, collective events, and routing that hold up at scale.
- Wide range of calendar and video integrations, so you keep the tools you already use.
- A public API with API key and OAuth access for building scheduling into your own product.
Cons
- Team and organization features start at $12 and $28 per user per month, so costs climb as headcount grows.
- Self-hosting is free but you own the servers, backups, and upgrades, which takes real engineering time.
- Some advanced controls, such as SAML SSO and SCIM, are limited to the Organizations tier and above.
- The code is open source, but enterprise features stay separate, so the public repo is not the whole product.
Frequently asked questions
Cal.com is a scheduling platform that people use to share booking links and let others pick a time. It handles confirmations, reminders, and timezone handling, so meetings get booked without a chain of emails.
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