Source: https://seerepo.com/compare/calcom/cal.diy/vs/puckeditor/puck
Markdown source: https://seerepo.com/compare/calcom/cal.diy/vs/puckeditor/puck.md
Description: cal.diy and puck share 7 technologies: Next.js, React, classnames, TanStack, Radix UI, Lucide, and handlebars. Both are written in TypeScript.

# cal.diy vs puck

cal.diy and puck share 7 technologies: Next.js, React, classnames, TanStack, Radix UI, Lucide, and handlebars. Both are written in TypeScript.

- [calcom/cal.diy](https://seerepo.com/r/calcom/cal.diy): Scheduling infrastructure for absolutely everyone.
- [puckeditor/puck](https://seerepo.com/r/puckeditor/puck): The visual editor for React.

## What they share and what sets them apart

- In common: Next.js, React, classnames, TanStack, Radix UI, Lucide, handlebars
- Only in cal.diy: connect, NestJS, Postgres, @nestjs/bull, @nest-lab/throttler-storage-redis, bull, Redis, Google, Sentry, Stripe, @next/third-parties, Vercel, PostHog, @trpc/server, @jetstreamapp/soql-parser-js, tRPC, lru-cache, kysely, next-auth, helmet, class-validator, class-transformer, Zod, @axiomhq/winston, nest-winston, tslog, winston, winston-transport, Tailwind CSS, next-themes, class-variance-authority, React Hook Form, sonner, Framer, @formkit/auto-animate, react-select, @hookform/error-message, react-digit-input, react-inlinesvg, @dub/embed-react, Glide, kbar, react-phone-input-2, react-sticky-box, react-timezone-select, react-turnstile, bcryptjs, jose, otplib, mailhog, markdown-it, node-html-parser, qrcode, react-qr-code, @hookform/resolvers, @todesktop/client-core, ink, ink-text-input, ink-select-input, @googleapis/oauth2, ical.js, tailwind-merge, Base UI, entities, nodemailer, @trigger.dev/sdk, @sendgrid/client, dompurify, jimp, remove-markdown, sanitize-html, sharp, turndown, marked, Prisma, node-ical, lexical, react-easy-crop, cmdk, react-colorful, react-day-picker, @lexical/markdown
- Only in puck: Contentful, React Router, dnd-kit, tiptap, @emotion/react, PostCSS, postcss-modules

## Side by side

| | cal.diy | puck |
|---|---|---|
| Size | 554,567 lines written, 4,285 code files | 47,700 lines written, 384 code files |
| Who writes it | 6.3% of its commits signed by AI. With Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot | 0.9% of its commits signed by AI. With Claude Code |
| Activity | Last push November 3, 2026, 16,069 commits, 49,876 stars | Last push November 9, 2026, 2,202 commits, 13,664 stars |
| Tests | 644 test files. 14.8% of its code files have a test that imports them | 68 test files. 17.4% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, cal.diy or puck?

cal.diy, with 554,567 lines written; puck has 47,700.

The proof: [calcom/cal.diy's code at commit 2eb48ec](https://github.com/calcom/cal.diy/tree/2eb48eccd8aca8a0c0ffabf28cf92e298b33ecee)

### Which has more GitHub stars, cal.diy or puck?

cal.diy, with 49,876 stars; puck has 13,664.

The proof: [calcom/cal.diy on GitHub](https://github.com/calcom/cal.diy)

### Which has more tests, cal.diy or puck?

cal.diy, with 644 test files; puck has 68.

The proof: [calcom/cal.diy's code at commit 2eb48ec](https://github.com/calcom/cal.diy/tree/2eb48eccd8aca8a0c0ffabf28cf92e298b33ecee)

### Which was updated more recently, cal.diy or puck?

puck: its last push was on November 9, 2026, and cal.diy's on November 3, 2026.

The proof: [puckeditor/puck's commits on GitHub](https://github.com/puckeditor/puck/commits)

### Which has more commits signed by AI, cal.diy or puck?

cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in puck, 0.9%.

The proof: [the commits each tool signed in calcom/cal.diy](https://seerepo.com/r/calcom/cal.diy/ai)

## Sources

- calcom/cal.diy: Read on November 10, 2026, at commit 2eb48ec (https://github.com/calcom/cal.diy/tree/2eb48eccd8aca8a0c0ffabf28cf92e298b33ecee)
- puckeditor/puck: Read on November 9, 2026, at commit d05542f (https://github.com/puckeditor/puck/tree/d05542f4ddc3ade0275860cb91756dadd7ea791a)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.