Source: https://seerepo.com/compare/meta/stylex/vs/vitejs/vite
Markdown source: https://seerepo.com/compare/meta/stylex/vs/vitejs/vite.md
Description: stylex and vite share 3 technologies: @clack/prompts, PostCSS, and lightningcss. stylex is written in JavaScript and vite in TypeScript.

# stylex vs vite

stylex and vite share 3 technologies: @clack/prompts, PostCSS, and lightningcss. stylex is written in JavaScript and vite in TypeScript.

- [meta/stylex](https://seerepo.com/r/meta/stylex): StyleX is the styling system for ambitious user interfaces.
- [vitejs/vite](https://seerepo.com/r/vitejs/vite): Next generation frontend tooling. It's fast!

## What they share and what sets them apart

- In common: @clack/prompts, PostCSS, lightningcss
- Only in stylex: React, postcss-value-parser, @csstools/css-tokenizer, styleq
- Only in vite: Vue, connect, postcss-load-config, Less, postcss-import, postcss-modules, Sass, Stylus, escape-html, parse5, css-color-names

## Side by side

| | stylex | vite |
|---|---|---|
| Size | 187,007 lines written, 444 code files | 119,649 lines written, 1,183 code files |
| Who writes it | 2.9% of its commits signed by AI. With Claude Code, Cursor, and GitHub Copilot | 0.7% of its commits signed by AI. With GitHub Copilot, Claude Code, Codex, Cursor, and Warp |
| Activity | Last push November 12, 2026, 1,031 commits, 10,490 stars | Last push November 12, 2026, 9,850 commits, 83,879 stars |
| Tests | 162 test files. 20.3% of its code files have a test that imports them | 411 test files. 6.3% 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, stylex or vite?

stylex, with 187,007 lines written; vite has 119,649.

The proof: [meta/stylex's code at commit c5f04fc](https://github.com/meta/stylex/tree/c5f04fc49132c97ae6f65a905f84470e4fc05c31)

### Which has more GitHub stars, stylex or vite?

vite, with 83,879 stars; stylex has 10,490.

The proof: [vitejs/vite on GitHub](https://github.com/vitejs/vite)

### Which has more tests, stylex or vite?

vite, with 411 test files; stylex has 162.

The proof: [vitejs/vite's code at commit 3e1a86e](https://github.com/vitejs/vite/tree/3e1a86e6c87a3c18356252c5d69bf9604cb85950)

### Which was updated more recently, stylex or vite?

Both got their last push on November 12, 2026.

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

### Which has more commits signed by AI, stylex or vite?

stylex: an AI signed 2.9% of its commits, with Claude Code, Cursor, and GitHub Copilot; in vite, 0.7%.

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

## Sources

- meta/stylex: Read on November 13, 2026, at commit c5f04fc (https://github.com/meta/stylex/tree/c5f04fc49132c97ae6f65a905f84470e4fc05c31)
- vitejs/vite: Read on November 12, 2026, at commit 3e1a86e (https://github.com/vitejs/vite/tree/3e1a86e6c87a3c18356252c5d69bf9604cb85950)

## 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.