HTML Formatter
Beautify and format HTML code with proper indentation
Ctrl + Enter to re-format
Ready · 2-space indent
Formatted HTML will appear here
Paste HTML above to begin
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HTML Formatter – Beautify HTML Online (Prettier)
Free HTML Formatter powered by Prettier: beautify messy or minified HTML online with 2-space, 4-space or tab indentation. Runs in your browser, no upload.
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What is HTML Formatter?
HTML Formatter is a free online HTML beautifier powered by Prettier. Paste compressed or messy HTML and get clean, properly indented markup, with a choice of 2-space, 4-space or tab indentation. Prettier also formats embedded script and style blocks, everything runs client-side in your browser, and you can download the result.
- html
- formatter
- beautifier
- prettier
- html5
- markup
Features
What you get with HTML Formatter.
Adjustable Indentation
Nested tags are automatically indented to the correct depth.
Adjustable Indent Size
Choose 2 spaces, 4 spaces, or tabs.
Embedded Blocks
Inline <script> and <style> blocks are formatted along with your markup.
Browser-Based Processing
HTML is formatted locally in your browser with no server uploads.
How to use HTML Formatter
Follow these steps to get the best results.
Paste your HTML
Paste compressed or messy markup into the input — formatting runs automatically.
Choose an indent size
Pick 2 spaces, 4 spaces, or tabs to match your project.
Copy or download the result
Copy the formatted HTML or download it as a file.
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Frequently asked questions
Common questions about HTML Formatter.
No — only whitespace and indentation are adjusted. Tag names, attributes, and content are never modified.
Yes — Prettier's HTML parser understands embedded <script> and <style> blocks and formats them appropriately.
No. Prettier controls line width and attribute wrapping here. The available setting is indentation: 2 spaces, 4 spaces, or tabs.
The formatter works best with plain HTML5. Template syntax may cause parsing errors — format the HTML structure separately if needed.
It uses Prettier's HTML formatter, so the output matches what Prettier produces with the same indentation settings. You get the result in your browser without installing Prettier or setting up a project. For automatic formatting in your editor or CI, install Prettier locally.
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