head to head · open source
Cal.com vs salt
Cal.com has 49,651 GitHub stars, 15,521 forks, 1,432 open issues and last shipped yesterday. salt has 15,729 stars, 5,604 forks, 1,885 open issues and last shipped yesterday. Cal.com leads on adoption by 216% (49,651 vs 15,729 stars). Cal.com is written in TypeScript under MIT; salt is written in Python under Apache-2.0. Cal.com has attracted 31% as many forks as stars, salt 36%. salt 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 | salt | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 16K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 16K | ⑂ 5.6K |
| 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 salt if
- You want the salt feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and salt 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 salt
.. image:: :alt: Salt Project License: Apache v2.0 :target: .. image:: :alt: PyPi Package Downloads :target: .. image:: :alt: Salt Project Discord Community :target: .. image:: :alt: Salt Project subreddit :target: .. image:: :alt: Follow SaltStack on Twitter :target: .. figure:: :scale: 80 % :width: 1000px :height: 356px :align: center :alt: Salt Project Logo Latest Salt Documentation Open an issue (bug report, feature request, etc.) .. note:: When using salt cloud p with a profile, pass only the VM name on the command line. Specify VM attributes (memory, cpu, vcpu, etc.) in the profile configuration, not as…
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Frequently asked questions
Is Cal.com or salt more popular?
Cal.com has 49,651 GitHub stars and salt has 15,729. Cal.com has the larger community by that measure.
Are Cal.com and salt free?
Both are open source. Cal.com is licensed under MIT and salt under Apache-2.0. Neither carries a licence fee.
What is the difference between Cal.com and salt?
Cal.com is written in TypeScript and salt in Python. 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 salt?
Choose Cal.com if you want the larger community (49,651 stars) or its MIT licence terms. Choose salt if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.