Stylelint

A mighty, modern linter that helps you avoid errors and enforce conventions in your styles.

Features

It's mighty as it:

• understands modern CSS syntax and features
• has over 170 built-in rules to catch errors and enforce conventions
• supports plugins so you can create your own rules
• automatically fixes the majority of stylistic problems
• is well tested with over 15000 unit tests
• supports shareable configs that you can extend or create
• is unopinionated so that you can customize it to your exact needs
• has a growing community and is used by Google, GitHub and WordPress

And can be extended to:

• parse CSS-like syntaxes like SCSS, Sass, Less and SugarSS
• extract embedded styles from HTML, Markdown and CSS-in-JS object & template literals

Example output

Guides

• User guide
  • Getting started
  • Configuration
  • Rules
    • List of rules
    • About rules
    • Combining rules
    • Using regex in rules
  • Usage
    • CLI
    • Node.js API
    • PostCSS plugin
    • Shared options
  • Integrations
    • Editor integrations
    • Task runner integrations
    • Other integrations
  • Ignoring code
  • Errors & warnings
• Developer guide
  • Working on rules
  • Writing plugins
  • Writing custom syntaxes
  • Writing custom formatters
  • Writing system tests
  • Writing processors
• Migration guide
  • Migrating to 14.0.0
• Maintainer guide
  • Managing issues
  • Managing pull requests
  • Performing releases
• About
  • Vision
  • Linting
  • Semantic versioning

Contributors

Stylelint is maintained by volunteers. Without the code contributions from all these fantastic people, Stylelint would not exist. Become a contributor.

Sponsors

Thank you to all our sponsors! Become a sponsor.

Backers

Thank you to all our backers! Become a backer.

Website hosting

License

The MIT License.