Source: https://seerepo.com/compare/parcel-bundler/parcel/vs/tailwindlabs/tailwindcss
Markdown source: https://seerepo.com/compare/parcel-bundler/parcel/vs/tailwindlabs/tailwindcss.md
Description: parcel and tailwindcss share 4 technologies: lightningcss, log, tracing, and PostCSS. parcel is written in Rust and tailwindcss in TypeScript.

# parcel vs tailwindcss

parcel and tailwindcss share 4 technologies: lightningcss, log, tracing, and PostCSS. parcel is written in Rust and tailwindcss in TypeScript.

- [parcel-bundler/parcel](https://seerepo.com/r/parcel-bundler/parcel): The zero configuration build tool for the web. 📦🚀
- [tailwindlabs/tailwindcss](https://seerepo.com/r/tailwindlabs/tailwindcss): A utility-first CSS framework for rapid UI development.

## What they share and what sets them apart

- In common: lightningcss, log, tracing, PostCSS
- Only in parcel: React, Tailwind CSS, cssparser, anstyle, html5ever, xml5ever, image, markdown, oxipng, Less, posthtml, Pug, Stylus, sugarss
- Only in tailwindcss: H3, Vite, tracing-subscriber, postcss-import, tailwindcss, postcss-selector-parser

## Side by side

| | parcel | tailwindcss |
|---|---|---|
| Size | 141,200 lines written, 239 code files | 165,694 lines written, 231 code files |
| Who writes it | 2.5% of its commits signed by AI. With Claude Code, Codex, and Gemini CLI | 0.2% of its commits signed by AI. With Claude Code, CodeRabbit, and Codex |
| Activity | Last push November 4, 2026, 4,005 commits, 44,014 stars | Last push November 2, 2026, 6,086 commits, 98,062 stars |
| Tests | 1,603 test files. 25.1% of its code files have a test that imports them | 137 test files. 36.4% 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, parcel or tailwindcss?

tailwindcss, with 165,694 lines written; parcel has 141,200.

The proof: [tailwindlabs/tailwindcss's code at commit 2626ae6](https://github.com/tailwindlabs/tailwindcss/tree/2626ae6ceddf36069ab6d55c53a5857c1e2e360a)

### Which has more GitHub stars, parcel or tailwindcss?

tailwindcss, with 98,062 stars; parcel has 44,014.

The proof: [tailwindlabs/tailwindcss on GitHub](https://github.com/tailwindlabs/tailwindcss)

### Which has more tests, parcel or tailwindcss?

parcel, with 1,603 test files; tailwindcss has 137.

The proof: [parcel-bundler/parcel's code at commit 0256839](https://github.com/parcel-bundler/parcel/tree/0256839dee32fcca0a0cfd72f48e70ab757fa8ec)

### Which was updated more recently, parcel or tailwindcss?

parcel: its last push was on November 4, 2026, and tailwindcss's on November 2, 2026.

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

### Which has more commits signed by AI, parcel or tailwindcss?

parcel: an AI signed 2.5% of its commits, with Claude Code, Codex, and Gemini CLI; in tailwindcss, 0.2%.

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

## Sources

- parcel-bundler/parcel: Read on November 6, 2026, at commit 0256839 (https://github.com/parcel-bundler/parcel/tree/0256839dee32fcca0a0cfd72f48e70ab757fa8ec)
- tailwindlabs/tailwindcss: Read on November 4, 2026, at commit 2626ae6 (https://github.com/tailwindlabs/tailwindcss/tree/2626ae6ceddf36069ab6d55c53a5857c1e2e360a)

## 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.