Project Formatting Options in Biome
From the Biome cheat sheet · Formatter · verified Aug 2026
Project Formatting Options
Set indentation, line width, line endings, and EditorConfig behavior.
json
{
"formatter": {
"enabled": true,
"indentStyle": "space",
"indentWidth": 2,
"lineWidth": 100,
"lineEnding": "lf"
}
}📌 Space indentation uses indentWidth; tabs ignore it
💡 useEditorconfig imports supported .editorconfig settings
🔍 formatWithErrors defaults to false
⚡ lineEnding auto follows the current operating system
formattereditorconfigindentation
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