Ultracite

Zero-config linting and formatting for JS/TS projects. Supports three linter backends: Biome (recommended), ESLint + Prettier, and Oxlint + Oxfmt.

Detecting Ultracite

Check if ultracite is in package.json devDependencies. Detect the active linter by looking for:

• biome.jsonc → Biome
• eslint.config.mjs → ESLint
• .oxlintrc.json → Oxlint

CLI Commands

# Check for issues (read-only)
bunx ultracite check

# Auto-fix issues
bunx ultracite fix