head to head · open source
Cal.com vs nexrender
Cal.com has 48,529 GitHub stars, 15,154 forks, 1,432 open issues and last shipped 4 days ago. nexrender has 1,853 stars, 348 forks, 0 open issues and last shipped 4 months ago. Cal.com leads on adoption by 2,519% (48,529 vs 1,853 stars). Cal.com is written in TypeScript under MIT; nexrender is written in JavaScript under MIT. Cal.com has attracted 31% as many forks as stars, nexrender 19%. Cal.com 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 | nexrender | |
|---|---|---|
| GitHub stars | ★ 49K | ★ 1.9K |
| License | MIT | MIT |
| Written in | TypeScript | JavaScript |
| Last push | 2026-09-14 | 2026-06-03 |
| Forks | ⑂ 15K | ⑂ 348 |
| 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 nexrender if
- You want the nexrender feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and nexrender 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 nexrender
nexrender is an open source JavaScript project for automating Adobe After Effects rendering workflows and creating data driven, template based videos. It lives in the Adobe After Effects and video production ecosystem, is built with Node.js, and is released under the MIT license.
read the full nexrender overview →
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Frequently asked questions
Is Cal.com or nexrender more popular?
Cal.com has 48,529 GitHub stars and nexrender has 1,853. Cal.com has the larger community by that measure.
Are Cal.com and nexrender free?
Both are open source. Cal.com is licensed under MIT and nexrender under MIT. Neither carries a licence fee.
What is the difference between Cal.com and nexrender?
Cal.com is written in TypeScript and nexrender in JavaScript. 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 nexrender?
Choose Cal.com if you want the larger community (48,529 stars) or its MIT licence terms. Choose nexrender if its feature set, stack or MIT licence fits better. Both are self-hostable.