cal.diy vs react-email
cal.diy and react-email share 14 technologies: Next.js, Redis, React, Zod, Tailwind CSS, classnames, sonner, Framer, Radix UI, Lucide, node-html-parser, tailwind-merge, entities, and marked. Both are written in TypeScript.
LinkedInWhat they share and what sets them apart
calcom
cal.diy
Scheduling infrastructure for absolutely everyone.
TypeScript49.7kRead on November 5, 2026, at commit 2eb48ecWhat is cal.diy built with?Only in cal.diy
connect
- @nestjs/core
- Postgres
- @nestjs/bull
- @nest-lab/throttler-storage-redis
- bull
- Sentry
- Stripe
- NestJS
- @next/third-parties
- Vercel
PostHog- @trpc/server
- tRPC
- lru-cache
kysely
next-auth
helmet
- class-validator
- class-transformer
- nest-winston
tslog
winston
winston-transport
- next-themes
class-variance-authority
- React Hook Form
- TanStack
@formkit/auto-animate
- react-select
- react-inlinesvg
react-sticky-box
- bcryptjs
- jose
- otplib
markdown-it
- qrcode
react-qr-code
@hookform/resolvers
ink
- ink-text-input
- ink-select-input
- ical.js
- Base UI
nodemailer
- handlebars
- dompurify
jimp
- remove-markdown
- sanitize-html
- sharp
- turndown
- Prisma
- node-ical
lexical
- react-easy-crop
- cmdk
- react-colorful
react-day-picker
In common
resend
react-email
💌 Build and send emails using React
TypeScript19.9kRead on November 5, 2026, at commit d8a0778What is react-email built with?Only in react-email
Side by side
cal.diyreact-email
SizeLines written by people and agents, without generated ones; code files, without tests.
cal.diy554,567 lines written4,308 code files
react-email209,349 lines written931 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
cal.diy6.3% of its commits signed by AIWith Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot
react-email3.3% of its commits signed by AIWith Cursor, Claude Code, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
cal.diyLast push November 3, 202616,069 commits49,716 stars
react-emailLast push November 5, 20262,625 commits19,913 stars
TestsThe files that test the code, and the share of code files a test imports.
cal.diy644 test files14.8% of its code files have a test that imports them
react-email194 test files18.3% of its code files have a test that imports them
Frequently asked questions
Which is bigger, cal.diy or react-email?
cal.diy, with 554,567 lines written; react-email has 209,349.
The proof: calcom/cal.diy's code at commit 2eb48ec
Which has more GitHub stars, cal.diy or react-email?
cal.diy, with 49,716 stars; react-email has 19,913.
The proof: calcom/cal.diy on GitHub
Which has more tests, cal.diy or react-email?
cal.diy, with 644 test files; react-email has 194.
The proof: calcom/cal.diy's code at commit 2eb48ec
Which was updated more recently, cal.diy or react-email?
react-email: its last push was on November 5, 2026, and cal.diy's on November 3, 2026.
The proof: resend/react-email's commits on GitHub
Which has more commits signed by AI, cal.diy or react-email?
cal.diy: an AI signed 6.3% of its commits, with Devin, Claude Code, CodeRabbit, Cursor, and GitHub Copilot; in react-email, 3.3%.
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