Source: https://seerepo.com/compare/adobe/react-spectrum/vs/gatsbyjs/gatsby
Markdown source: https://seerepo.com/compare/adobe/react-spectrum/vs/gatsbyjs/gatsby.md
Description: react-spectrum and gatsby share 8 technologies: React, PostCSS, boxen, unist-util-visit, mdast-util-toc, remark-mdx, remark-parse, and unified. react-spectrum is written in TypeScript and gatsby in JavaScript.

# react-spectrum vs gatsby

react-spectrum and gatsby share 8 technologies: React, PostCSS, boxen, unist-util-visit, mdast-util-toc, remark-mdx, remark-parse, and unified. react-spectrum is written in TypeScript and gatsby in JavaScript.

- [adobe/react-spectrum](https://seerepo.com/r/adobe/react-spectrum): A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.
- [gatsbyjs/gatsby](https://seerepo.com/r/gatsbyjs/gatsby): React-based framework with performance, scalability, and security built in.

## What they share and what sets them apart

- In common: React, PostCSS, boxen, unist-util-visit, mdast-util-toc, remark-mdx, remark-parse, unified
- Only in react-spectrum: MCP, Tailwind CSS, postcss-value-parser, react-transition-group, postcss-custom-properties, postcss-import, Zod, lightningcss, js-yaml, remark-frontmatter, @tailwindcss/postcss
- Only in gatsby: Express, express-graphql, react-reconciler, @gatsbyjs/reach-router, history, cache-manager, graphql-http, react-server-dom-webpack, GitHub, @emotion/react, Normalize.css, prism-react-renderer, react-error-boundary, react-icons, react-markdown, unist-util-remove, prop-types, glamor, ink, ink-spinner, @mdx-js/react, remark-stringify, @hapi/joi, enquirer, joi, progress, prompts, @emotion/styled, file-type, graphiql, rss, vfile, gray-matter, mdast-util-mdx, mdast-util-to-hast, sharp, styled-components, styled-jsx, Cheerio, Autoprefixer, postcss-flexbugs-fixes

## Side by side

| | react-spectrum | gatsby |
|---|---|---|
| Size | 619,804 lines written, 2,388 code files | 344,142 lines written, 2,017 code files |
| Who writes it | 0.3% of its commits signed by AI. With Claude Code and GitHub Copilot | 0% of its commits signed by AI. With GitHub Copilot and Claude Code |
| Activity | Last push November 7, 2026, 6,612 commits, 16,016 stars | Last push October 20, 2026, 21,540 commits, 55,919 stars |
| Tests | 549 test files. 16.8% of its code files have a test that imports them | 1,688 test files. 15.7% 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, react-spectrum or gatsby?

react-spectrum, with 619,804 lines written; gatsby has 344,142.

The proof: [adobe/react-spectrum's code at commit 82959b6](https://github.com/adobe/react-spectrum/tree/82959b6a9ac4ea717228636b99fc8fd24736a7f4)

### Which has more GitHub stars, react-spectrum or gatsby?

gatsby, with 55,919 stars; react-spectrum has 16,016.

The proof: [gatsbyjs/gatsby on GitHub](https://github.com/gatsbyjs/gatsby)

### Which has more tests, react-spectrum or gatsby?

gatsby, with 1,688 test files; react-spectrum has 549.

The proof: [gatsbyjs/gatsby's code at commit 516700a](https://github.com/gatsbyjs/gatsby/tree/516700a1dca1e982b6d098ab57230b25e0318a1f)

### Which was updated more recently, react-spectrum or gatsby?

react-spectrum: its last push was on November 7, 2026, and gatsby's on October 20, 2026.

The proof: [adobe/react-spectrum's commits on GitHub](https://github.com/adobe/react-spectrum/commits)

### Which has more commits signed by AI, react-spectrum or gatsby?

react-spectrum: an AI signed 0.3% of its commits, with Claude Code and GitHub Copilot.

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

## Sources

- adobe/react-spectrum: Read on November 7, 2026, at commit 82959b6 (https://github.com/adobe/react-spectrum/tree/82959b6a9ac4ea717228636b99fc8fd24736a7f4)
- gatsbyjs/gatsby: Read on November 5, 2026, at commit 516700a (https://github.com/gatsbyjs/gatsby/tree/516700a1dca1e982b6d098ab57230b25e0318a1f)

## 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.