Check, Format & Lint in Biome
From the Biome cheat sheet · Core Commands · verified Aug 2026
Check, Format & Lint
Choose the combined command or run each tool independently.
bash
# Format, lint, and run Assist checks
npx @biomejs/biome check .
# Run one tool only
npx @biomejs/biome format .
npx @biomejs/biome lint .🟢 check is the normal all-in-one local quality command
📌 Commands report changes unless --write is provided
💡 Pass paths to keep focused checks fast
🔍 explain accepts a rule or diagnostic name
checkformatlintcli
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