stylelint is a powerful, modern linter for CSS and its preprocessors, such as SCSS and Less. It helps developers maintain consistent coding styles and catch errors in their stylesheets before they become problematic. By enforcing coding standards and best practices, stylelint improves the quality of CSS code, making it easier to read and maintain. While stylelint is a robust tool for CSS linting, there are other alternatives in the ecosystem that serve different purposes. Here are a few notable alternatives:

• eslint is a widely-used linter for JavaScript and JSX code. It helps developers identify and fix problems in their JavaScript code by enforcing coding standards and best practices. While eslint is primarily focused on JavaScript, it can be extended to lint other file types, including styles written in CSS-in-JS libraries. If you're looking for a comprehensive solution for linting both JavaScript and CSS-in-JS styles, eslint is a great choice.
• prettier is an opinionated code formatter that supports multiple languages, including JavaScript, CSS, and HTML. Unlike traditional linters, which focus on identifying potential issues in the code, prettier automatically formats code according to a set of rules. This ensures a consistent code style across your project without requiring manual adjustments. While prettier doesn't replace stylelint, it can be used alongside it to ensure both linting and formatting of CSS and other code types.
• sass-lint is a linter specifically designed for Sass (Syntactically Awesome Style Sheets). It helps enforce coding standards and best practices in Sass files, similar to what stylelint does for CSS. If your project primarily uses Sass and you want a linter tailored specifically for that preprocessor, sass-lint is a suitable alternative.

To see how stylelint compares with eslint, prettier, and sass-lint, check out the comparison: Comparing eslint vs prettier vs sass-lint vs stylelint.