Oxc Linter

High-performance ESLint-compatible linter for JavaScript and TypeScript.

Overview

This crate provides a fast, ESLint-compatible linting engine with comprehensive rule support. It leverages oxc's high-performance AST and semantic analysis to deliver significantly faster linting than traditional tools.

Key Features

ESLint compatibility: Drop-in replacement for most ESLint workflows
High performance: 50-100x faster than ESLint on large codebases
Comprehensive rules: Supports most popular ESLint rules and plugins
TypeScript support: Full TypeScript linting with type-aware rules
Plugin system: Extensible architecture for custom rules

Architecture

Rule System

Rule categories: Correctness, Suspicious, Pedantic, Style, etc.
Configurable severity: Error, Warning, or Off for each rule
Auto-fixing: Many rules can automatically fix issues
Plugin support: Load external rule collections

Performance Design

Single AST pass: Most rules run in a single traversal
Efficient analysis: Leverages oxc's semantic analysis
Parallel execution: Process multiple files concurrently
Memory efficiency: Uses arena allocation for optimal performance

ESLint Compatibility

Configuration format: Supports ESLint config files
Rule parity: Implements behavior-compatible versions of popular rules
Plugin ecosystem: Compatible with many ESLint plugins
Migration path: Easy transition from ESLint to oxlint

The linter is designed to be both a standalone tool and a library component for integration into other development tools.

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