4 self-hosted options
Open-source alternatives to Calendly
The best open-source alternatives to Calendly are Cal.diy, Rallly and Easy!Appointments.
About Calendly: A scheduling tool that lets people book meetings from your availability.
Every option below is free to self-host and ranked by GitHub stars, so you can move off Calendly without giving up the features you rely on.
Top picks
- Rank 1:
Cal.diy
calcom/cal.diy
Online appointment scheduling system.
Booking & SchedulingTypeScript - Rank 2:
Rallly
lukevella/rallly
Create polls to vote on dates and times (alternative to Doodle).
Booking & SchedulingTypeScriptDocker - Rank 3:
Easy!Appointments
alextselegidis/easyappointments
Allows your customers to book appointments with you via the web.
Booking & SchedulingPHP
Why switch
Why teams move off Calendly
Self-hosting is not only about saving money. These are the reasons people make the switch.
Own your data
Your data lives on a server you control, not on Calendly's infrastructure. No surprise policy changes and no lock-in.
No per-seat pricing
Open-source alternatives to Calendly are free to run for as many users as your server can handle. A small VPS often costs less than a single subscription.
Customize and extend
Read the code, add plugins, connect it to your own tools and automate it through open APIs. When you need a feature, you can build it or fund it.
Full ranking
All 4 Calendly alternatives
Ranked by GitHub stars. Open any app for live stats, license details and a deploy option.
- 1
Cal.diy
Online appointment scheduling system.
Booking & Scheduling - 2
Rallly
Create polls to vote on dates and times (alternative to Doodle).
Booking & SchedulingDocker - 3
Easy!Appointments
Allows your customers to book appointments with you via the web.
Booking & Scheduling - 4
LibreBooking
Resource scheduling solution offering a flexible, mobile-friendly, and extensible interface for organizations to manage resource reservations.
Booking & SchedulingDocker
What is the best open-source alternative to Calendly?
Cal.diy is the most popular open-source alternative to Calendly, with 48,880 GitHub stars. Rallly and Easy!Appointments are also strong choices. Compare features, license and recent activity to find the best fit for your team.
Is there a free alternative to Calendly?
Yes. All 4 apps on this page are open source and free to self-host, so you can run a Calendly replacement without per-user fees. You only pay for the server, and a small VPS is usually enough for personal use or a small team.
Can I self-host an alternative to Calendly?
Yes. Rallly and LibreBooking ship a Docker image, so you can run them on a home server or VPS with Docker Compose in a few minutes. Your data then stays on hardware you control.
How do I migrate from Calendly?
Start by exporting your data from Calendly, then check the import options of the app you pick, since many projects ship importers for popular formats. Run both side by side for a week before you switch so nothing is lost.