Goatlint

Goatlint is a high-performance JavaScript and TypeScript linter written in Rust. It runs 50-100x faster than ESLint while implementing hundreds of popular rules out of the box.

• Zero configuration required to get started
• Supports ESLint-compatible JS plugins for custom rules
• Built-in support for TypeScript, React, Vue, JSX-A11y, Import, Unicorn, and more
• Autofixes for many rules via --fix

Quick Start

npx goatlint@latest

No setup needed — goatlint lints the current directory with sensible defaults.

Installation

npm install -D goatlint

Usage

# Lint the current directory
npx goatlint

# Lint specific paths
npx goatlint src/ tests/

# Apply autofixes
npx goatlint --fix

# Show all available rules
npx goatlint --rules

# Output as JSON
npx goatlint --format json

Configuration

Create a .goatlintrc.json in your project root:

{
  "$schema": "./node_modules/goatlint/configuration_schema.json",
  "rules": {
    "no-unused-vars": "warn",
    "no-console": "off"
  },
  "categories": {
    "correctness": "error",
    "suspicious": "warn"
  }
}

Or generate one automatically:

npx goatlint --init

See the config file reference for all options.

Migrating from ESLint

npx @goatlint/migrate

This reads your ESLint config and generates an equivalent .goatlintrc.json. See the migration guide for details.

Links

• Documentation
• CLI Reference
• Rules
• JS Plugins
• Editor Integration
• Discord

License

MIT