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react-email vs ui

react-email and ui share 11 technologies: Next.js, React, Tailwind CSS, PostCSS, Radix UI, sonner, vaul, Lucide, Zod, ora, and prompts. Both are written in TypeScript.

Read it as markdown

What they share and what sets them apart

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

In common

shadcn-ui

ui

Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

TypeScript127.3kRead on November 4, 2026, at commit 8a35366What is ui built with?

Only in ui

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
react-email209,349 lines written931 code files
ui636,496 lines written3,892 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.
react-email3.3% of its commits signed by AIWith Cursor, Claude Code, and GitHub Copilot
ui3% of its commits signed by AIWith Claude Code, Cursor, GitHub Copilot, Codex, and Devin
ActivityFrom GitHub and its history, on the day SeeRepo read it.
react-emailLast push November 5, 20262,625 commits19,913 stars
uiLast push November 4, 20262,298 commits127,326 stars
TestsThe files that test the code, and the share of code files a test imports.
react-email194 test files18.3% of its code files have a test that imports them
ui415 test files3.8% of its code files have a test that imports them

Frequently asked questions

Which is bigger, react-email or ui?
ui, with 636,496 lines written; react-email has 209,349.

The proof: shadcn-ui/ui's code at commit 8a35366

Which has more GitHub stars, react-email or ui?
ui, with 127,326 stars; react-email has 19,913.

The proof: shadcn-ui/ui on GitHub

Which has more tests, react-email or ui?
ui, with 415 test files; react-email has 194.

The proof: shadcn-ui/ui's code at commit 8a35366

Which was updated more recently, react-email or ui?
react-email: its last push was on November 5, 2026, and ui's on November 4, 2026.

The proof: resend/react-email's commits on GitHub

Which has more commits signed by AI, react-email or ui?
react-email: an AI signed 3.3% of its commits, with Cursor, Claude Code, and GitHub Copilot; in ui, 3%.

The proof: the commits each tool signed in resend/react-email

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