Source: https://seerepo.com/compare/mui/material-ui/vs/vercel/next.js
Markdown source: https://seerepo.com/compare/mui/material-ui/vs/vercel/next.js.md
Description: material-ui and next.js share 5 technologies: React, Next.js, PostCSS, prop-types, and emotion. Both are written in JavaScript.

# material-ui vs next.js

material-ui and next.js share 5 technologies: React, Next.js, PostCSS, prop-types, and emotion. Both are written in JavaScript.

- [mui/material-ui](https://seerepo.com/r/mui/material-ui): Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.
- [vercel/next.js](https://seerepo.com/r/vercel/next.js): The React Framework

## What they share and what sets them apart

- In common: React, Next.js, PostCSS, prop-types, emotion
- Only in material-ui: Vite, @slack/bolt, React Router, @material-ui/core, mustache, @emotion/react, @popperjs/core, react-transition-group, styled-components
- Only in next.js: Express, concurrent-queue, Tokio, scheduler, react-server-dom-webpack, styled-jsx, Tailwind CSS, geist, MUI, react-virtualized, Framer, Headless UI, @heroicons/react, Lucide, Cheerio, js-yaml, image, sharp, Ajv, tracing, tracing-subscriber, OpenTelemetry, pino, class-variance-authority, next-themes, tailwind-merge, Radix UI, cmdk, prompts, Sass

## Side by side

| | material-ui | next.js |
|---|---|---|
| Size | 775,910 lines written, 23,407 code files | 2,391,614 lines written, 5,697 code files |
| Who writes it | 0.3% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor | 0.8% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, and Devin |
| Activity | Last push November 4, 2026, 26,756 commits, 99,297 stars | Last push November 4, 2026, 36,392 commits, 143,262 stars |
| Tests | 1,195 test files. 2.2% of its code files have a test that imports them | 18,587 test files. 6.5% 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, material-ui or next.js?

next.js, with 2,391,614 lines written; material-ui has 775,910.

The proof: [vercel/next.js's code at commit 97f1a2c](https://github.com/vercel/next.js/tree/97f1a2c8a1deb23cf03855d67f942c0fe3ded1ce)

### Which has more GitHub stars, material-ui or next.js?

next.js, with 143,262 stars; material-ui has 99,297.

The proof: [vercel/next.js on GitHub](https://github.com/vercel/next.js)

### Which has more tests, material-ui or next.js?

next.js, with 18,587 test files; material-ui has 1,195.

The proof: [vercel/next.js's code at commit 97f1a2c](https://github.com/vercel/next.js/tree/97f1a2c8a1deb23cf03855d67f942c0fe3ded1ce)

### Which was updated more recently, material-ui or next.js?

Both got their last push on November 4, 2026.

The proof: [mui/material-ui's commits on GitHub](https://github.com/mui/material-ui/commits)

### Which has more commits signed by AI, material-ui or next.js?

next.js: an AI signed 0.8% of its commits, with Claude Code, Cursor, GitHub Copilot, and Devin; in material-ui, 0.3%.

The proof: [the commits each tool signed in vercel/next.js](https://seerepo.com/r/vercel/next.js/ai)

## Sources

- mui/material-ui: Read on November 4, 2026, at commit 403986a (https://github.com/mui/material-ui/tree/403986ae957cea6959358fb8dbefc2178b62f2d5)
- vercel/next.js: Read on November 4, 2026, at commit 97f1a2c (https://github.com/vercel/next.js/tree/97f1a2c8a1deb23cf03855d67f942c0fe3ded1ce)

## 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.