head to head · open source
Cal.com vs Easy!Appointments
Cal.com has 49,651 GitHub stars, 15,521 forks, 1,432 open issues and last shipped yesterday. Easy!Appointments has 4,474 stars, 1,584 forks, 164 open issues and last shipped yesterday. Cal.com leads on adoption by 1,010% (49,651 vs 4,474 stars). Cal.com is written in TypeScript under MIT; Easy!Appointments is written in PHP under GPL-3.0. Cal.com has attracted 31% as many forks as stars, Easy!Appointments 35%. Easy!Appointments was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Cal.com | Easy!Appointments | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 4.5K |
| License | MIT | GPL-3.0 |
| Written in | TypeScript | PHP |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 16K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Cal.com if
- You weight community size — 50K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Easy!Appointments if
- You want the Easy!Appointments feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches PHP
- You evaluated both and Easy!Appointments fits your workflow better
About Cal.com
[!WARNING] Use at your own risk. Cal.diy is the open source community edition of Cal.com and it is intended for users who want to self host their own Cal.diy instance. It is strictly recommended for personal, non production use. Please review all installation and configuration steps carefully. Self hosting requires advanced knowledge of server administration, database management, and securing sensitive data. Proceed only if you are comfortable with these responsibilities. [!TIP] For any commercial and enterprise ready scheduling infrastructure, use Cal.com, not Cal.diy; hosted by us or get invited to on prem…
read the full Cal.com overview →
About Easy!Appointments
Easy!Appointments A powerful, self hosted appointment scheduling platform built for flexibility. Why Easy!Appointments • Features • Quick Start • Installation • License Looking for advanced capabilities? Explore premium features and professional services at easyappointments.org/premium . 🚀 Why Easy!Appointments Easy!Appointments is an open source scheduling system that gives you full control over your booking workflow. It is designed to adapt to your business — whether you need simple appointment booking or more advanced scheduling logic. Key advantages: Fully self hosted — your data stays under your control…
read the full Easy!Appointments overview →
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Frequently asked questions
Is Cal.com or Easy!Appointments more popular?
Cal.com has 49,651 GitHub stars and Easy!Appointments has 4,474. Cal.com has the larger community by that measure.
Are Cal.com and Easy!Appointments free?
Both are open source. Cal.com is licensed under MIT and Easy!Appointments under GPL-3.0. Neither carries a licence fee.
What is the difference between Cal.com and Easy!Appointments?
Cal.com is written in TypeScript and Easy!Appointments in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Cal.com or Easy!Appointments?
Choose Cal.com if you want the larger community (49,651 stars) or its MIT licence terms. Choose Easy!Appointments if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.