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HTML Formatter

Format HTML with indentation. Parsed using the browser's built-in DOMParser, so the result reflects how a real browser interprets the markup.

Useful when you need to make sense of minified/one-line HTML source, or tidy up a template engine's output. Since it's parsed with the same engine a real browser uses, even slightly broken HTML is interpreted reasonably.

# Use Cases

  • Inspecting minified HTML output from a template engine or SSR framework
  • Understanding the structure of a compressed HTML source
  • Checking how a browser will interpret HTML with a missing closing tag

# Usage

  1. Paste the HTML you want to format into the text area.
  2. Click "Format" to see it laid out with readable indentation.

# FAQ

Does it handle broken HTML (missing closing tags, etc.)?
Yes. Unlike XML, the browser's HTML parser doesn't throw errors — it does its best to interpret the markup. The result may not always match your intent, so double-check it.
Does it reformat the contents of <script> or <style>?
No — the JavaScript/CSS inside those tags is output as plain text, unmodified.

# Related

XML FormatterMarkdown Previewer

# Learn more on our sister sites