What is cloudflare-os built with?
cloudflare-os is a TypeScript repo built with React, Preact, Vite, and TanStack. It signs people in with jose, uses AI through Pi, makes its content with node-html-parser, yaml, react-markdown, remark-gfm, postal-mime, and 3 more, validates its data with Zod and typebox, is tested with Vitest, commonmark, playwright, and fast-check, and uses MCP. It has 1,012,668 written lines, with 750 test files.
LinkedInRead on November 12, 2026, at commit 3441200. Read it as markdown
The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.
Frontend
The base 3
- React192 files · in packages/workshop-frontend/package.json
- TanStack47 files
- Vite2 files · in packages/workshop-frontend/package.json
Styles 1
Interface 5
- Cloudflare132 files
- CodeMirror8 files
motion2 files
emoji-mart1 file
- @lezer/highlight2 files
Icons 1
- @phosphor-icons/react110 files
Backend
Support
Testing 4
- Vitest621 files
fast-check11 files
playwright4 files
commonmark1 file
Tools 2
- Cloudflare1 file
- esbuild1 file
The base 1
- Preact2 files
Content 8
remark-gfm4 files
yaml3 files
- react-markdown4 files
- postal-mime2 files
- dompurify1 file
- mdast-util-from-markdown1 file
- mimetext1 file
- node-html-parser1 file
Other 8
yjs3 files
isomorphic-git1 file
- diff3 files
- hash-wasm2 files
- diff31 file
- fast-diff1 file
- jsonc-parser1 file
- temporal-polyfill1 file
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Frequently asked questions
What language is cloudflare-os written in?
What framework does cloudflare-os use?
The proof: in packages/workshop-frontend/package.json
What does cloudflare-os sign people in with?
Does cloudflare-os use AI?
What services does cloudflare-os use?
The proof: packages/mcp-shared/src/account.ts, line 29
Does cloudflare-os have tests?
Which repos have a stack like cloudflare-os's?
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