Docs 13 sites
Reference material worth bookmarking.
free
MDN Web Docs
Source of truth for browser-compat-data. Rock solid.
developer.mozilla.org
free Stack pick DevDocs
100+ sources. MCP integration in 2026 lets agents query pinned versions.
devdocs.io
free Stack pick TypeScript handbook
Standard reference.
typescriptlang.org/docs
free Stack pick Rust Book
Well-edited, versioned with the language.
doc.rust-lang.org/book
free Stack pick Python docs
Authoritative. Multiple version selectors.
docs.python.org
free Stack pick Astro docs
Starlight-based, ships doc updates same day as releases. Rust compiler rewrite in progress.
docs.astro.build
free Stack pick Cloudflare docs
High signal for edge-first stack. Ships changelog per product.
developers.cloudflare.com
free Stack pick pnpm docs
Fast hardlink-based, monorepo-friendly.
pnpm.io
free Node.js docs
API reference per LTS/Current.
nodejs.org/docs
free Tailwind docs
Utility-first reference. Rust/Oxide engine.
tailwindcss.com/docs
free React docs (react.dev)
Learn + Reference split with interactive sandboxes.
react.dev
free Web.dev
Prescriptive how-to on Core Web Vitals, PWAs. Complements MDN.
web.dev
free Stack pick Bun docs
Powers Claude Code + Claude Agent SDK. Bun.markdown.ansi, headless browser automation.
bun.sh