Quick Answer
An HTML beautifier takes minified or hand-cramped markup and re-indents every element so nesting becomes visible at a glance. This tool understands void tags (img, br, input) so it never indents a tag that has no closing partner.
What This Tool Does
The beautifier tokenizes your HTML into tags and text, tracks element nesting, and re-emits each tag on its own line at the right indentation. Void elements and self-closing tags are handled correctly, and text content is preserved.
Key Features
- Void-tag aware —
<img>,<br>,<input>and friends never get phantom indentation. - Adjustable indentation — 1–8 spaces or tabs, updating live.
- Pre/code preservation — content inside
<pre>,<code>,<textarea>,<script>and<style>is left untouched (customizable list). - Line wrapping — set a max line length; long tags wrap attributes onto their own lines.
- Quote-aware tokenizer —
>inside attribute values never breaks a tag. - Instant — live updates as you paste or type.
- Upload file or load from URL — format existing pages directly.
- Copy or download the formatted markup.
How to Use the HTML Beautifier
- Paste your minified HTML into the input box, or use Upload File / Load from URL.
- Pick an indentation style from the dropdown.
- Open Show advanced options to set a wrap line length or change the unformatted tags.
- Read the indented result on the right.
- Copy it or download the file.
Use Cases
- Inspecting a compressed email template or single-file page.
- Finding a missing closing tag by seeing the nesting visually.
- Making a framework-generated bundle of HTML readable for review.
Tips
- If the output looks odd around an element, check that the original markup was valid — unbalanced tags confuse any formatter.
- Combine with the HTML Minifier for the round trip.
Privacy
Formatting is local — your markup never leaves the browser.
Conclusion
Minified HTML is opaque; beautified HTML is debuggable. Paste it in and see the structure clearly — free and private.