Stylelint
UnclaimedA mighty CSS linter that helps you avoid errors and enforce conventions.
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Tracked since2026
0 reviews trackedThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
Prevents a wide range of CSS errors and problematic code patterns.
Biggest con
Requires initial setup and configuration to match project standards.
TL;DR - Stylelint
- A powerful CSS linter with over 100 built-in rules for modern CSS.
- Helps avoid errors and enforce coding conventions in CSS.
- Highly extensible with plugins, custom syntaxes, and shareable configurations.
Pricing: Free forever
Best for: Individuals & startups
What is Stylelint?
Stylelint is a powerful CSS linter designed to help developers maintain high-quality, error-free, and consistent CSS codebases. It provides over 100 built-in rules for modern CSS syntax and features, enabling users to catch common mistakes like malformed grid areas, duplicate selectors, and misspelled property names. Beyond error prevention, Stylelint helps enforce coding conventions by allowing users to disallow specific units, enforce naming patterns for custom properties, set limits on selector types, and specify notations for modern color functions.
The tool is highly extensible, supporting plugins for custom rules, shareable configurations, and the ability to parse CSS-like languages such as SCSS, Sass, Less, and SugarSS. It can also extract embedded styles from HTML, Markdown, and CSS-in-JS template literals. Stylelint is configurable to exact project needs, boasts a robust test suite with high coverage, and is trusted by major companies like Google and GitHub, making it a reliable choice for individual developers and large teams alike. It is recommended to be used alongside a pretty printer like Prettier for a comprehensive code quality workflow.
Available on: Web
Pros & Cons
Pros
- Prevents a wide range of CSS errors and problematic code patterns.
- Enforces consistent coding conventions across projects and teams.
- Highly extensible and configurable to suit diverse project requirements.
- Supports various CSS-like syntaxes and embedded styles.
- Robust and well-tested, trusted by major companies.
Cons
- Requires initial setup and configuration to match project standards.
- May require learning custom rule creation for very specific use cases.
Key Features
Over 100 built-in rules for modern CSS syntax and featuresSupports plugins for custom rulesAutomatically fixes problems where possibleSupports shareable configurationsCustomizable to exact project needsExtracts embedded styles from HTML, Markdown, and CSS-in-JS template literalsParses CSS-like languages like SCSS, Sass, Less, and SugarSSComprehensive test suite with over 95% coverage
Pricing Plans
Pricing checked Jun 20, 2026
Open Source
Free
- 100+ built-in rules for modern CSS syntax and features
- Supports plugins for custom rules
- Automatically fixes problems where possible
- Supports shareable configs
- Customizable
- 15k unit tests
- Trusted by companies worldwide
- Extract embedded styles from HTML, Markdown and CSS-in-JS template literals
Reviews
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Stylelint FAQ
How does Stylelint help maintain CSS quality?
Stylelint helps maintain CSS quality by providing over 100 built-in rules that catch common errors like malformed grid areas, duplicate selectors, and misspelled property names. It also enforces coding conventions, allowing users to disallow specific units or set limits on selector types. This ensures consistent and error-free CSS codebases.
Which teams benefit most from using Stylelint?
Teams that need to maintain high-quality, consistent, and error-free CSS codebases will benefit most from Stylelint. It is suitable for both individual developers and large teams, helping to enforce coding standards across projects. Companies like Google and GitHub trust it for their development workflows.
How does Stylelint compare to SonarQube?
Stylelint is specifically designed as a CSS linter, focusing on preventing CSS errors and enforcing conventions within CSS codebases. SonarQube, while also a code quality tool, offers broader static analysis capabilities across multiple programming languages. Stylelint's strength lies in its deep specialization for CSS and CSS-like syntaxes.
What kind of setup is required to use Stylelint?
Stylelint requires an initial setup and configuration to align with specific project standards and coding conventions. While it offers extensive built-in rules, users may also need to learn custom rule creation for highly unique use cases. It is recommended to use it alongside a pretty printer like Prettier for a comprehensive workflow.
Does Stylelint support CSS-like languages?
Yes, Stylelint is highly extensible and supports parsing various CSS-like languages, including SCSS, Sass, Less, and SugarSS. It can also extract embedded styles from HTML, Markdown, and CSS-in-JS template literals. This broad compatibility makes it versatile for diverse development environments.
How is Stylelint priced?
Stylelint is free to use, meaning there is no paid plan required to access its features. This makes it an accessible tool for individual developers and organizations looking to improve their CSS code quality without incurring costs.
Source: stylelint.io