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Clean and Standardize your HTML
HTML is the backbone of the web. Unclosed tags or improper nesting can cause rendering issues and hurt your SEO. Our HTML Formatter & Validator ensures your code is semantic, standard-compliant, and easy to read.
Features Explained
- Beautify: Adds proper indentation to nested tags, making the document structure clear.
- Minify: Removes newlines and spaces between tags. Essential for high-performance production sites.
- Tag Debugger: Scans the DOM tree for unclosed elements (e.g., a
<div>without a</div>).
HTML5 FAQ
Does indentation affect the page display?
Technically, yes. Browsers render whitespace between inline-block elements. However, in most layout cases, indentation is purely for developer readability.
Which tags are self-closing?
Tags like <img>, <br>, <input>, and <meta> are void elements and do not require a closing tag. Our validator knows this and won't flag them.
Why use a minifier?
Minifying HTML can reduce page size by 10-20%. This improves "Time to First Byte" (TTFB) and is a recommendation by Google Lighthouse.