Open Source Calendly AlternativesTop Appointment Schedulers and other similar apps like Calendly
The best open source alternative to Calendly is Cal.com. It's not free, so if you're looking for a free alternative, you could try Thunderbird Appointment or Easy!Appointments. If that doesn't suit you, our users have ranked more than 50 alternatives to Calendly and eight of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Calendly are Croodle, Ink-In-Time, Meetsy and DFN Scheduler.
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Calendly alternatives are mainly Appointment Schedulers but may also be Calendar Apps or Poll Makers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Calendly.- Appointment Scheduler
- Freemium • Proprietary
24 likes53 Cal.com alternativesThe open source Calendly alternative. Self-hosted or hosted by us. White-label by design. API-driven and ready to be deployed on your own domain. You are in control of your events and data.
License model
- Free Personal • Open Source
Application type
Platforms
- Self-Hosted
- Software as a Service (SaaS)
Top Cal.com Features
Cal.com VS Calendly
Is Cal.com a good alternative to Calendly?
10 likes56 Thunderbird Appointment alternativesThunderbird Appointment makes it easy to find a time to meet. So you can ditch the admin and streamline your day.
Thunderbird Appointment VS Calendly
Is this a good alternative to Calendly?
10 likes57 Easy!Appointments alternativesEasy!Appointments is a highly customizable web application that allows your customers to book appointments with you via the web. Moreover, it provides the ability to sync your data with Google Calendar so you can use them with other services.
License model
- Free • Open Source
Application type
Platforms
- Self-Hosted
- Cloudron
- Wordpress
Easy!Appointments Features
Easy!Appointments VS Calendly
Is Easy!Appointments a good alternative to Calendly?- 2 likes36 Croodle alternatives
Croodle is a web application to schedule a date or to do a poll on a general topics. All data like title and description, number and labels of options and available answers and names of users are encrypted/decrypted in the browser using 256 bits AES.
License model
- Free • Open Source
Application types
Platforms
- Linux
- Online
- Self-Hosted
- PHP
Croodle Features
Croodle VS Calendly
Is Croodle a good alternative to Calendly? 
2 likes28 Ink-In-Time alternativesAppointment scheduling/booking application that aims to be super-simple, and open source!
Ink-In-Time VS Calendly
Is Ink-In-Time a good alternative to Calendly?Meetsy VS Calendly
Is Meetsy a good alternative to Calendly?
1 like108 DFN Scheduler alternatives- an Framadate installation - Easy and fast coordination of appointments that pays special attention to the protection of data. All data used are exclusively stored in Germany.
License model
- Free • Open Source
Application type
Platforms
- Online
DFN Scheduler Features
DFN Scheduler VS Calendly
Is DFN Scheduler a good alternative to Calendly?Comments about DFN Scheduler as an Alternative to Calendly
Like Doodle pollot calendly
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Like this app9 Zaptime alternativesPersonalized scheduling of your meetings and calls. Meet Zaptime! 📅 Connect your Google Calendar or iCloud Calendar, customize your availability, and wave goodbye to double bookings. Your schedule, supercharged!.
Zaptime Features
Zaptime VS Calendly
Is Zaptime a good alternative to Calendly?
Comments about Cal.com as an Alternative to Calendly
Not dependent on JavaScript and open source. Honestly, more and more businesses are locking down JS to only trusted sites or ones they use internally. Calendly depends on it, and I had some people not be able to use it because of this. Cal provides you the same kind of functionality and is much easier to manager. Calendly does have some added functionality but as I found out
Cal.com (formerly Calendly) is the BEST alternative to Calendso that I've tried, and offers additional intergrations. Their free tier is also a lot more generous, and if you want to self-host, there are simple ways of doing so via Railway.
More features, pretty, and OSS.