Stylelint

Stylelint is the industry-leading CSS linter trusted by companies like WordPress, Bootstrap, and thousands of frontend teams to maintain pristine stylesheets across large codebases. With over 170 built-in rules and comprehensive support for modern CSS, preprocessors, and CSS-in-JS, it has become the definitive tool for CSS code quality and consistency.

What makes Stylelint exceptional is its intelligent rule system that catches syntax errors, enforces coding standards, and maintains consistent formatting automatically. From detecting invalid properties to preventing duplicate selectors, it ensures your stylesheets remain clean, performant, and maintainable while supporting the latest CSS features and methodologies.

Frontend developers and design system teams choose Stylelint because it seamlessly integrates into any workflow while providing the flexibility to enforce custom coding standards. From small websites to enterprise design systems, it delivers the automated quality control that professional CSS development demands.

Key Features

• Comprehensive CSS Analysis Engine - Over 170 built-in rules covering syntax, formatting, and best practices with customizable error levels • Universal Syntax Support - Full compatibility with CSS, SCSS, Sass, Less, and CSS-in-JS solutions like styled-components • Modern CSS Feature Detection - Native support for CSS Grid, Flexbox, custom properties, and cutting-edge CSS specifications • Intelligent Error Prevention - Catches typos, invalid properties, duplicate selectors, and performance-impacting patterns automatically • Flexible Configuration System - Shareable configs, rule inheritance, and team-specific customization with JSON or YAML setup • Advanced Editor Integration - Real-time feedback in VS Code, WebStorm, Sublime Text with automatic fixing capabilities • Continuous Integration Ready - Git hooks, GitHub Actions, and CI/CD pipeline integration with detailed reporting • Extensible Plugin Architecture - Custom rules, processors, and formatters for specialized workflows and requirements

Pros and Cons

Pros

• Industry standard with comprehensive rule coverage • Excellent integration with popular editors and build tools • Flexible configuration for team-specific standards • Strong support for modern CSS and preprocessors • Active community with extensive documentation

Cons

• Initial setup can be overwhelming for beginners • Some rules may conflict with specific design patterns • Requires configuration tuning for optimal results • Can slow down builds with extensive rule sets • Learning curve for custom rule development

Get Started with Stylelint

Transform your CSS quality with the linter trusted by WordPress and Bootstrap teams worldwide. Visit stylelint.io to install the comprehensive tool that keeps your stylesheets error-free and professionally maintained.