# Validators

This article lists different resources for developers to check web documents.

- [W3C HTML Validator](https://validator.w3.org/) validates HTML documents.
- [W3C CSS Validator](https://jigsaw.w3.org/css-validator/) validates CSS stylesheets.
- [W3C Link Checker](https://validator.w3.org/checklink) checks for broken links in HTML documents.
- [HTML Tidy](https://www.html-tidy.org/) tool finds errors in HTML documents, and can automatically fix some errors.