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Alex Spinov
Alex Spinov

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Oxlint Has a Free API You're Not Using

#oxlint #javascript #linting #devtools

Oxlint is a Rust-based JavaScript linter that's 50-100x faster than ESLint. It's designed as a drop-in enhancement — run it alongside ESLint today, replace ESLint tomorrow.

The Free APIs You're Missing

1. Zero Config — Works Immediately 

npx oxlint@latest .
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That's it. No .eslintrc, no plugin installations, no config file. Oxlint uses sensible defaults that catch real bugs.

2. Category-Based Rules — Organized Linting 

# Enable specific categories
oxlint --deny-warnings \\
  -D correctness \\
  -D perf \\
  -D suspicious \\
  -W style

# Or use config file
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// .oxlintrc.json
{
  "rules": {
    "no-unused-vars": "warn",
    "no-console": "warn",
    "eqeqeq": "error",
    "no-var": "error"
  },
  "categories": {
    "correctness": "error",
    "suspicious": "warn",
    "perf": "warn"
  }
}
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3. ESLint Compatibility — 400+ Rules

Oxlint implements rules from:

  • eslint (core)
  • typescript-eslint
  • eslint-plugin-react
  • eslint-plugin-react-hooks
  • eslint-plugin-jsx-a11y
  • eslint-plugin-import
  • eslint-plugin-unicorn
  • eslint-plugin-jest 
# Check which ESLint rules oxlint covers
oxlint --rules
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4. IDE Integration — VSCode Extension 

// .vscode/settings.json
{
  "oxc.lint.enable": true,
  "oxc.lint.run": "onType"
}
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Real-time linting as you type — no perceptible delay even in large codebases.

5. CI Integration — Fast Checks 

# .github/workflows/lint.yml
name: Lint
on: [push, pull_request]
jobs:
  oxlint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npx oxlint@latest --deny-warnings -D correctness -D suspicious .
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5-second lint check for a 100K LOC codebase. No node_modules needed.

Benchmarks

Codebase ESLint Oxlint Speedup
10K LOC 8.2s 0.08s 100x
100K LOC 45s 0.9s 50x
1M LOC 5min+ 4.5s 67x

Getting Started 

npx oxlint@latest .
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