41.1k
Cal.com
Cal.com is an open-source scheduling infrastructure for absolutely everyone, enabling seamless appointment coordination.
⚡
Productivity🛠️
Tools🌐
Web
2 Open Source Alternatives to Calendly
There are 2 open-source alternatives to Calendly in this directory. The most popular is Cal.com with 41.1k GitHub stars, followed by Coss(9.5k stars). All are open source, free to use, and many can be self-hosted.
Quick comparison
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Cal.com Cal.com is an open-source scheduling infrastructure for absolutely everyone, enabling seamless appointment coordination. | 41.1k | TypeScript | Other |
| 2 | Coss Coss.com serves as the new holding company for Cal.com, one of the leading open-source scheduling infrastructure platforms. It supports the ongoing development and innovation of open scheduling software, providing foundational solutions for seamless calendar and productivity integrations. | 9.5k | TypeScript | GNU Affero General Public License v3.0 |
All open-source alternatives to Calendly
Frequently asked questions
What are the best open-source alternatives to Calendly?
The top three are Cal.com(41.1k stars), Coss(9.5k stars). All are open source and free to use.
Are these alternatives to Calendly free?
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Can I self-host an alternative to Calendly?
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
Stay Updated!
Get notified about new tools and updates to existing ones.