AlternativeTo Logo

Open Source Calendly Alternatives

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 Easy!Appointments or Croodle. If that doesn't suit you, our users have ranked more than 25 alternatives to Calendly and six of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Calendly are Ink-In-Time, Meetsy and DFN Scheduler.

Calendly alternatives are mainly Appointment Schedulers but may also be Calendar Apps or Customer Support Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Calendly.
This page was last updated
Calendly iconCalendly
  26
  • Online
  • Android
  • iPhone
  • Android Tablet
  • iPad

Calendly can connect with up to six of your calendars to automatically check availability and help you connect with your...

Learn more about Calendly

  1. Cal.com icon

    Cal.com

    • Self-Hosted
    • Software as a Service (SaaS)
    16 alternatives to Cal.com 

    The 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.

     Suggest and vote on features
    Features
    1.  Sync with Google CalendarCal.com can be synchronized with Google Calendar
    2.  Calendar IntegrationCal.com lets you sync your tasks and events with your calendar application.
    Screenshot
    Screenshot
    Screenshot
    Cal.com vs Calendly opinions
    pros, cons and recent comments
    Guest

    More features, pretty, and OSS.

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.   
    1
    android037

    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

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.   
    0
    tangycandy

    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.

    Positive comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.   
    0
  2. Easy!Appointments icon

    Easy!Appointments

    • Self-Hosted
    • Cloudron
    • Wordpress
    29 alternatives to Easy!Appointments 

    Easy!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.

    Screenshot
    Easy!Appointments vs Calendly opinions
    pros, cons and recent comments
    Guest

    It's not a booking system

    Negative comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.   
    0


  3. Croodle

    • Linux
    • Online
    • Self-Hosted
    • PHP
    25 alternatives to Croodle 

    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.

     Suggest and vote on features
    Features
    1.  End-to-End EncryptionCroodle has E2E Encryption, for entire or parts of the app.
  4. Ink-In-Time icon

    Ink-In-Time

    • Linux
    • Online
    • Self-Hosted
    14 alternatives to Ink-In-Time 

    Appointment scheduling/booking application that aims to be super-simple, and open source!

     Suggest and vote on features
    Features
    1.  LightweightInk-In-Time consumes less device resources compared to similar apps.
    2.  No registration requiredYou can use most of the features in Ink-In-Time without registration.
    3.  Calendar IntegrationInk-In-Time lets you sync your tasks and events with your calendar application.
    4.  No TrackingInk-In-Time will not track you or use your personal data.
    5.  Privacy focusedInk-In-Time is considered a privacy friendly alternative.
    6.  Ad-freeInk-In-Time doesn't contain any form of external advertising.
    7.  Sync with Google CalendarInk-In-Time can be synchronized with Google Calendar
    Screenshot
  5. Meetsy icon

    Meetsy

    49 alternatives to Meetsy 

    Open source online booking system.

     Suggest and vote on features
    Features
    1.  Calendar IntegrationMeetsy lets you sync your tasks and events with your calendar application.


  6. DFN Scheduler icon

    DFN Scheduler

    98 alternatives to DFN Scheduler 
    • 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.
     Suggest and vote on features
    Features
    Screenshot
    DFN Scheduler vs Calendly opinions
    pros, cons and recent comments
    Guest

    Like Doodle pollot calendly

    Negative comment ago
    Copy a direct link to this comment to your clipboard   
    If this Comment contains spam or other abuse, notify admins about it.   
    0
Showing 6 of 6 alternatives
AlternativeTo