Pretty-printing a minified HTML email or a "view source" copy of a page so you can read its structure. Cleaning up a snippet from a CMS / WYSIWYG before pasting into a code review. Minifying a static HTML asset before deploying — fewer bytes over the wire, no comments leaked. Stripping author comments from a template before publishing.

This is a pragmatic tokenizer, not a full HTML5 parser. It works well on real-world fragments but won't recover from severely malformed input the way browsers do (browsers run the full HTML parsing algorithm and fix up errors silently — this tool doesn't). Whitespace inside , , , is preserved. These elements are treated as raw and aren't re-indented. Inline elements stay on the same line as their parent text — some bold text won't be split across lines. "Collapse whitespace" changes the rendered output for some content. Two spaces become one. If your design relies on multiple spaces or non-breaking sequences, leave it off. Self-closing notation in HTML is cosmetic. and are equivalent in HTML5; this tool preserves whatever you wrote. Minify is not a security boundary. Don't rely on stripping comments to hide secrets — they were already shipped to the client.

HTML Formatter

Format and beautify HTML or minify it. Indent size, comment stripping, and self-closing tag awareness.

Input

Mode

Indent

Strip comments

Collapse whitespace in text

Output

Enter input above to see the result.

What is this for?

HTML markup arrives in your editor in all sorts of states — minified for production, generated by templating engines with no regard for whitespace, hand-typed and indented inconsistently. This tool reformats any HTML fragment with consistent indentation per nested element, recognising void elements (<img>, <br>, <meta>) and inline elements (<a>, <span>, <strong>) so the output looks like real HTML, not a layout-by-rule. Minify mode strips inter-tag whitespace and optionally comments. Everything stays in your browser.

When to use it

Pretty-printing a minified HTML email or a "view source" copy of a page so you can read its structure.
Cleaning up a snippet from a CMS / WYSIWYG before pasting into a code review.
Minifying a static HTML asset before deploying — fewer bytes over the wire, no comments leaked.
Stripping author comments from a template before publishing.

Common gotchas

This is a pragmatic tokenizer, not a full HTML5 parser. It works well on real-world fragments but won't recover from severely malformed input the way browsers do (browsers run the full HTML parsing algorithm and fix up errors silently — this tool doesn't).
Whitespace inside <pre>, <textarea>, <script>, <style> is preserved. These elements are treated as raw and aren't re-indented.
Inline elements stay on the same line as their parent text — <p>some <b>bold</b> text</p> won't be split across lines.
"Collapse whitespace" changes the rendered output for some content. Two spaces become one. If your design relies on multiple spaces or non-breaking sequences, leave it off.
Self-closing notation in HTML is cosmetic. <br/> and <br> are equivalent in HTML5; this tool preserves whatever you wrote.
Minify is not a security boundary. Don't rely on stripping comments to hide secrets — they were already shipped to the client.