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HTML Formatter – Beautify & Format HTML Code Online Free
NewFormat and beautify HTML with proper indentation, attribute alignment, and print width control. Powered by Prettier. Fully browser-based — no uploads needed.
HTML Formatter
Beautify and format HTML code with proper indentation
Places each HTML attribute on its own line
Ctrl + Enter to re-format
Formatted HTML will appear here
Paste HTML above to begin
What is HTML Formatter?
A free online HTML formatter powered by Prettier. Paste compressed or messy HTML and get clean, properly indented markup. Options include indent size, print width, and single-attribute-per-line mode. Works with HTML5, templates, and embedded scripts. All processing is client-side — your code stays private.
HTML Formatter Features
Proper Indentation
Nested tags are automatically indented to the correct depth.
Attribute Formatting
Optional single-attribute-per-line mode for long element tags.
Print Width Control
Set a max line width of 80, 120, or unlimited to suit your style.
100% Browser-Based
No server uploads — your HTML is formatted entirely in your browser.
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HTML Formatter FAQ
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.
When enabled, each HTML attribute is placed on its own line. This improves readability for elements with many attributes like form inputs.
The formatter works best with plain HTML5. Template syntax may cause parsing errors — format the HTML structure separately if needed.