Source: https://seerepo.com/compare/calcom/cal.diy/vs/kern/filepizza
Markdown source: https://seerepo.com/compare/calcom/cal.diy/vs/kern/filepizza.md
Description: cal.diy and filepizza share 7 technologies: Next.js, Redis, React, Zod, Tailwind CSS, next-themes, and react-qr-code. Both are written in TypeScript.

# cal.diy vs filepizza

cal.diy and filepizza share 7 technologies: Next.js, Redis, React, Zod, Tailwind CSS, next-themes, and react-qr-code. Both are written in TypeScript.

- [calcom/cal.diy](https://seerepo.com/r/calcom/cal.diy): Scheduling infrastructure for absolutely everyone.
- [kern/filepizza](https://seerepo.com/r/kern/filepizza): :pizza: Peer-to-peer file transfers in your browser

## What they share and what sets them apart

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

## Side by side

| | cal.diy | filepizza |
|---|---|---|
| Size | 554,774 lines written, 4,286 code files | 6,799 lines written, 58 code files |
| Who writes it | 6.3% of its commits signed by AI. With Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot | 0.5% of its commits signed by AI. With Claude Code |
| Activity | Last push November 11, 2026, 16,071 commits, 49,990 stars | Last push November 12, 2026, 367 commits, 10,279 stars |
| Tests | 645 test files. 14.9% of its code files have a test that imports them | 35 test files. 53.4% 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 filepizza?

cal.diy, with 554,774 lines written; filepizza has 6,799.

The proof: [calcom/cal.diy's code at commit ef7954d](https://github.com/calcom/cal.diy/tree/ef7954d16ab50882ca2f263c551537115b8a8bb1)

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

cal.diy, with 49,990 stars; filepizza has 10,279.

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

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

cal.diy, with 645 test files; filepizza has 35.

The proof: [calcom/cal.diy's code at commit ef7954d](https://github.com/calcom/cal.diy/tree/ef7954d16ab50882ca2f263c551537115b8a8bb1)

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

filepizza: its last push was on November 12, 2026, and cal.diy's on November 11, 2026.

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

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

cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in filepizza, 0.5%.

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 13, 2026, at commit ef7954d (https://github.com/calcom/cal.diy/tree/ef7954d16ab50882ca2f263c551537115b8a8bb1)
- kern/filepizza: Read on November 13, 2026, at commit 1e4d02f (https://github.com/kern/filepizza/tree/1e4d02fa91527d8dc83f4094ca394f8c29a88b56)

## 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.