HTML Formatter and Beautifier

Why format HTML?

Well-formatted HTML is easier to read, debug, and maintain. Proper indentation reveals the document structure at a glance, making it simple to find matching opening and closing tags, spot nesting errors, and understand the relationship between elements.

When to minify HTML

Minified HTML removes unnecessary whitespace and comments, reducing file size for faster page loads. This is typically done as a build step before deploying to production. Minification does not affect how the browser renders the page.

HTML formatting rules

• Block elements (div, section, main, header, footer, ul, ol, table, form) get their own line and increase indentation for children.
• Inline elements (span, a, strong, em, code) with short content are kept on the same line as their parent.
• Void elements (br, hr, img, input, meta, link) have no closing tag.
• Script and style tags preserve their inner content without reformatting.
• Comments are preserved on their own line at the current indentation level.

Frequently Asked Questions

Is my data sent to a server? No. All formatting runs entirely in your browser using JavaScript. Nothing is uploaded.

Does the formatter change my HTML's behavior? No. Formatting only changes whitespace and line breaks. The rendered output is identical.