Source: https://seerepo.com/compare/PlasmoHQ/plasmo/vs/withastro/astro
Markdown source: https://seerepo.com/compare/PlasmoHQ/plasmo/vs/withastro/astro.md
Description: plasmo and astro share 4 technologies: React, Vue, Svelte, and sharp. Both are written in TypeScript.

# plasmo vs astro

plasmo and astro share 4 technologies: React, Vue, Svelte, and sharp. Both are written in TypeScript.

- [PlasmoHQ/plasmo](https://seerepo.com/r/PlasmoHQ/plasmo): 🧩 The Browser Extension Framework
- [withastro/astro](https://seerepo.com/r/withastro/astro): The web framework for content-driven websites.

## What they share and what sets them apart

- In common: React, Vue, Svelte, sharp
- Only in plasmo: lightningcss
- Only in astro: Vite, Hono, unstorage, Preact, Solid, Alpine.js, Express, Fastify, preact-render-to-string, prismjs, fast-xml-parser, xml2js, Zod, unifont, @capsizecss/unpack, fontace, @clack/prompts, am-i-vibing, Cheerio, html-escaper, parse-srcset, shiki, ultrahtml, unist-util-visit, tinyps, linkedom, @markdoc/markdoc, htmlparser2, satteri, @shikijs/rehype, rehype-mathjax, rehype-pretty-code, remark-math, remark-toc, unified, Netlify, Vercel, yaml, retext-smartypants, vfile, mdast-util-mdx, mdast-util-mdx-jsx, rehype-raw, remark-gfm, remark-smartypants, estree-util-visit, hast-util-from-html, hast-util-to-html, hast-util-to-text, mdast-util-definitions, mdast-util-mdx-expression, rehype-stringify, remark, remark-parse, unist-util-remove-position, unist-util-visit-parents

## Side by side

| | plasmo | astro |
|---|---|---|
| Size | 14,352 lines written, 203 code files | 297,833 lines written, 1,007 code files |
| Who writes it | 0% of its commits signed by AI | 0.2% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor |
| Activity | Last push November 9, 2026, 976 commits, 13,176 stars | Last push November 9, 2026, 15,186 commits, 63,851 stars |
| Tests | 1 test files. 1% of its code files have a test that imports them | 3,218 test files. 4.6% 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, plasmo or astro?

astro, with 297,833 lines written; plasmo has 14,352.

The proof: [withastro/astro's code at commit c904827](https://github.com/withastro/astro/tree/c904827015f4a71e890ac51919adada9c219a3e9)

### Which has more GitHub stars, plasmo or astro?

astro, with 63,851 stars; plasmo has 13,176.

The proof: [withastro/astro on GitHub](https://github.com/withastro/astro)

### Which has more tests, plasmo or astro?

astro, with 3,218 test files; plasmo has 1.

The proof: [withastro/astro's code at commit c904827](https://github.com/withastro/astro/tree/c904827015f4a71e890ac51919adada9c219a3e9)

### Which was updated more recently, plasmo or astro?

Both got their last push on November 9, 2026.

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

### Which has more commits signed by AI, plasmo or astro?

astro: an AI signed 0.2% of its commits, with Claude Code, GitHub Copilot, and Cursor.

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

## Sources

- PlasmoHQ/plasmo: Read on November 10, 2026, at commit 9369e28 (https://github.com/PlasmoHQ/plasmo/tree/9369e2835de237caa60620b74b12ea3e2d4f3600)
- withastro/astro: Read on November 9, 2026, at commit c904827 (https://github.com/withastro/astro/tree/c904827015f4a71e890ac51919adada9c219a3e9)

## 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.