Source: https://seerepo.com/compare/calcom/cal.diy/vs/wasp-lang/wasp
Markdown source: https://seerepo.com/compare/calcom/cal.diy/vs/wasp-lang/wasp.md
Description: cal.diy and wasp share 8 technologies: Postgres, React, helmet, Zod, Tailwind CSS, React Hook Form, nodemailer, and Prisma. Both are written in TypeScript.

# cal.diy vs wasp

cal.diy and wasp share 8 technologies: Postgres, React, helmet, Zod, Tailwind CSS, React Hook Form, nodemailer, and Prisma. Both are written in TypeScript.

- [calcom/cal.diy](https://seerepo.com/r/calcom/cal.diy): Scheduling infrastructure for absolutely everyone.
- [wasp-lang/wasp](https://seerepo.com/r/wasp-lang/wasp): The batteries-included full-stack framework for the AI era. Develop JS/TS web apps (React, Node.js, and Prisma) using declarative code that abstracts away complex full-stack features like auth, background jobs, RPC, email sending, end-to-end type safety, single-command deployment, and more.

## What they share and what sets them apart

- In common: Postgres, React, helmet, Zod, Tailwind CSS, React Hook Form, nodemailer, Prisma
- Only in cal.diy: connect, Next.js, @nestjs/core, @nestjs/bull, @nest-lab/throttler-storage-redis, bull, Redis, Google, Sentry, Stripe, NestJS, @next/third-parties, Vercel, PostHog, @trpc/server, tRPC, lru-cache, kysely, next-auth, class-validator, class-transformer, nest-winston, tslog, winston, winston-transport, classnames, next-themes, class-variance-authority, TanStack, sonner, Framer, @formkit/auto-animate, Radix UI, react-select, react-inlinesvg, react-sticky-box, Lucide, bcryptjs, jose, otplib, markdown-it, node-html-parser, qrcode, react-qr-code, @hookform/resolvers, ink, ink-text-input, ink-select-input, ical.js, tailwind-merge, Base UI, entities, handlebars, dompurify, jimp, remove-markdown, sanitize-html, sharp, turndown, marked, node-ical, lexical, react-easy-crop, cmdk, react-colorful, react-day-picker, @lexical/markdown
- Only in wasp: React Router, Vite, Express, Resend, arctic, morgan, Inquirer, toml, oslo, @node-rs/argon2, reactflow, HeroUI, elkjs

## Side by side

| | cal.diy | wasp |
|---|---|---|
| Size | 554,567 lines written, 4,308 code files | 90,344 lines written, 589 code files |
| Who writes it | 6.3% of its commits signed by AI. With Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot | 3.5% of its commits signed by AI. With Claude Code and GitHub Copilot |
| Activity | Last push November 3, 2026, 16,069 commits, 49,716 stars | Last push November 5, 2026, 3,296 commits, 18,793 stars |
| Tests | 644 test files. 14.8% of its code files have a test that imports them | 200 test files. 8.3% 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 wasp?

cal.diy, with 554,567 lines written; wasp has 90,344.

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 wasp?

cal.diy, with 49,716 stars; wasp has 18,793.

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

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

cal.diy, with 644 test files; wasp has 200.

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 wasp?

wasp: its last push was on November 5, 2026, and cal.diy's on November 3, 2026.

The proof: [wasp-lang/wasp's commits on GitHub](https://github.com/wasp-lang/wasp/commits)

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

cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in wasp, 3.5%.

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 5, 2026, at commit 2eb48ec (https://github.com/calcom/cal.diy/tree/2eb48eccd8aca8a0c0ffabf28cf92e298b33ecee)
- wasp-lang/wasp: Read on November 6, 2026, at commit ca39410 (https://github.com/wasp-lang/wasp/tree/ca394109f549e671ae4ecd0e2c90285504026361)

## 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.