Format, validate &
minify HTML

How to use every option

1. Get HTML in — paste it into the input box, drag & drop a .html/.htm file, click Upload, or load the Sample.
2. Format — reindents the document. Pick 2 spaces, 4 spaces, Tab, or "No indentation (flat)" to put every tag on its own line without nesting indentation.
3. Attribute quotes — choose whether attribute values use double or single quotes in the output.
4. Wrap attributes over — if a tag's opening line would exceed this character count, each attribute is placed on its own line instead.
5. Sort attributes — alphabetizes every element's attributes for consistent diffs.
6. Lowercase tag & attribute names — normalizes casing, matching the HTML5 convention.
7. Self-close void elements — writes void elements like <br>, <img>, <input> as <br /> etc.
8. Strip HTML comments — removes <!-- … --> blocks from both Format and Minify output.
9. Remove empty elements — drops elements with no attributes and no content (e.g. a stray <div></div>).
10. Collapse extra whitespace — reduces multiple spaces/line breaks inside text nodes to a single space.
11. Minify — produces compact, single-line HTML using the same comment/whitespace settings above.
12. Validate — reports unclosed/mismatched tags with line numbers, plus common W3C/MDN issues (missing DOCTYPE, lang, title, alt text, duplicate ids, deprecated tags, inline event handlers).
13. Extract Text — strips all tags and returns the page's plain-text content only.
14. Search — find and highlight matches inside whatever is currently shown in the output box.
15. Copy or download the result, and revisit past runs from Local History.

One HTML tool instead of five

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