The open source Calendly alternative. Self host it, or have it hosted. Integrate it seamlessly into your business with advanced customization and an open API.
The community submitted 85 reviews to tell
us what they like about Cal.com, what Cal.com can do better, and
more.
4.8
Based on 85 reviews
Review Cal.com?
Reviewers mostly praise Cal.com for a clean, simple interface, easy setup, and smoother scheduling than Calendly and similar tools. Repeated strengths include strong calendar integrations, support for multiple calendars and time zones, embedding on websites, and flexible customization through self-hosting and an open API. A few users also call out helpful support and built-in video calls. The main complaints are inconsistent support, gaps in Microsoft integration, downtime, and confusion over which features are truly open source, with one reviewer strongly criticizing feature paywalling.
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Viktor.comAn AI coworker that actually does the work
It's ridiculous for Cal.com to call itself "open source" after pulling a classic bait-and-switch. They attracted a community by offering key features like team member functions, only to rip them out of the open-source version and lock them behind a proprietary paywall. This move is a betrayal of the open-source spirit and a genuine shame for a project that once held so much promise.
Very happy with cal.com It has some great quality of life features that I like. The open-source ethos is great for a techy so I can create an issue and they can decide whether to implement or not. The workflow for both sides is a lot more pleasant than calendly, fantastical, and a few others I've tried. Excited to try out cal.ai
I use this for all my scheduling outside of work! So easy to send someone a link to my availability, and the fact I can connect multiple calendars (Google + Outlook) is HUGE! The team keeps adding more helpful features and evolving the product. I've never been disappointed.
What's great
easy to use (23)integration with Google Calendar (4)integration with Outlook (2)fast product development (3)
I like the interface, it's simple and minimalistic. Calendar integration and also pixel integration are seamless. Additionally, customised reminders are also something useful. Though I haven't experienced this before right now, the site is down. I hope it gets resolved soon.
The product has a direction and a goal aligned with what I need out of a calendar, getting my meetings scheduled easily. Cal.com accomplishes this and when I've had an issue, which turned out to be user error, they were right there to help me.
Cal.com’s open-source nature and robust integration options set it apart as a scheduling tool that is both customizable and scalable. It’s perfect for individuals and enterprises seeking white-labeling and branding solutions.
What's great
open source (14)white-labeling (2)advanced customization (5)
Had an issue logging in and Peer (CEO) tended to the matter within the hour. I haven't had such responsive customer service so this was quite the experience. It's refreshing to find a customer-centric open source project do so well.
Product is great. Self hosting is fairly easy to setup and maintain but could be improved. It was not immediately clear to me what features were not included in the open source version, which led me to bad surprises unfortunately.
Using Cal on a daily basis. Its customizability is a god send.
Their rate of product development is astounding and the reason why I believe they are already the best product in the market.
Disclaimer: Fan and investor 😊
What's great
fast product development (3)advanced customization (5)
Oustanding interface, very easy. Integrates with my Google calendar and helps me make myself available asynchronously to new people. I don't know what I did before I had a scheduling interface like this.
What's great
easy to use (23)beautiful interface (11)integration with Google Calendar (4)