head to head · open source
Cal.com vs brightbean-studio
Cal.com has 48,529 GitHub stars, 15,154 forks, 1,432 open issues and last shipped 4 days ago. brightbean-studio has 2,341 stars, 501 forks, 34 open issues and last shipped yesterday. Cal.com leads on adoption by 1,973% (48,529 vs 2,341 stars). Cal.com is written in TypeScript under MIT; brightbean-studio is written in Python under AGPL-3.0. Cal.com has attracted 31% as many forks as stars, brightbean-studio 21%. brightbean-studio was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (open-source), so they are genuine substitutes rather than adjacent tools.
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 | brightbean-studio | |
|---|---|---|
| GitHub stars | ★ 49K | ★ 2.3K |
| License | MIT | AGPL-3.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-14 | 2026-09-17 |
| Forks | ⑂ 15K | ⑂ 501 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Cal.com if
- You weight community size — 49K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick brightbean-studio if
- You want the brightbean-studio feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and brightbean-studio fits your workflow better
About Cal.com
Cal.diy is a fully open source, community maintained fork of Cal.com, stripped of all enterprise and commercial features. It provides a self hosted scheduling platform built on the T3 stack (Next.js, tRPC, Prisma, Tailwind CSS, Zod), licensed under MIT with no proprietary code or license keys required.
read the full Cal.com overview →
About brightbean-studio
BrightBean Studio is an open source, self hostable social media management platform for creators, agencies, and small and medium sized businesses. It is built in Python and Django, uses HTMX, and can be deployed with Docker. The project lives in the Python and Django open source web application ecosystem.
read the full brightbean-studio overview →
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Frequently asked questions
Is Cal.com or brightbean-studio more popular?
Cal.com has 48,529 GitHub stars and brightbean-studio has 2,341. Cal.com has the larger community by that measure.
Are Cal.com and brightbean-studio free?
Both are open source. Cal.com is licensed under MIT and brightbean-studio under AGPL-3.0. Neither carries a licence fee.
What is the difference between Cal.com and brightbean-studio?
Cal.com is written in TypeScript and brightbean-studio 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 brightbean-studio?
Choose Cal.com if you want the larger community (48,529 stars) or its MIT licence terms. Choose brightbean-studio if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.