Enter some CSS code and click "Validate" to check it for errors.
CSS Validator
Check your CSS code for errors, typos, and warnings online.
About the CSS Validator Tool
The CSS Validator tool is a simple and helpful tool we built to help you write better CSS. When you're working on a website, it's easy to make small mistakes in your stylesheets, like a typo in a property name or a missing semicolon. Yet, these small errors can sometimes cause big problems with how your website looks. This tool helps you catch those errors early.
You just paste your code into the box, and we'll check it for you. The tool will point out any syntax errors, typos, or common mistakes that could cause issues across different web browsers. So, using this CSS checker is a good step to make sure your website works well for everyone, everywhere.
How It Works
- Paste your CSS code into the text area above.
- Click the "Validate CSS" button.
- The tool will immediately show you a list of any errors or warnings it finds.
- Each result will tell you the line number, the issue, and the type (error or warning).
- If there are no issues, you'll get a success message. Your CSS is good to go!
Frequently Asked Questions
What is a CSS Validator?
A CSS validator is a tool that checks your CSS code to make sure it follows the official rules and standards. It's like a spell checker for your stylesheets, which helps you find mistakes that you might have missed. This ensures your code is clean and reliable.
Why is it important to validate my CSS?
Validating your CSS is important for a few reasons. First, it helps you find and fix errors that could make your website look broken in some browsers. Second, clean, valid CSS is easier for you and other developers to read and maintain. And finally, it ensures your site is more accessible and provides a consistent experience for all users.
What kind of errors can this tool find?
Our tool can find a wide range of issues. This includes simple syntax mistakes like typos (e.g., `backgroud` instead of `background`) and missing semicolons. It also flags warnings for things that aren't technically errors but are often bad practice, such as using duplicate properties or browser-specific hacks that might not work everywhere.
Is this tool based on W3C standards?
Yes, the rules used by this validator are based on the standards set by the World Wide Web Consortium (W3C), which are the official standards for CSS. The tool helps you write code that is compliant with these rules, which is the best way to ensure it works across all modern web browsers.
Is my CSS code private when I use this tool?
Yes, your code is 100% private and secure. The entire validation process happens inside your web browser. The CSS you paste is never uploaded or sent to our servers, so you can be sure that your work stays on your computer.