HTML Beautifier Online
Format and beautify HTML code with proper indentation — all in your browser.
What Is HTML Beautification?
HTML Beautifier is a free online tool that format and beautify HTML code with proper indentation — all in your browser. No files are uploaded — everything is processed locally on your device.
This HTML beautifier online reformats messy or minified HTML markup into clean, properly indented code with consistent tag nesting and readable attribute formatting. Well-structured HTML is easier to maintain, debug, and collaborate on. Our beautifier processes your markup entirely in the browser, so template code and proprietary page structures never leave your device.
Privacy guarantee: HTML Beautifier processes all files directly in your browser using WebAssembly. No data is uploaded to any server, no information is collected, and the tool works offline after loading. Unlimited usage with no signup, no watermarks, and no file size limits.
How to Use HTML Beautifier
Paste your HTML
Paste your raw or minified HTML into the input area or upload an .html file.
Select formatting options
Choose your indentation size, whether to wrap attributes, and other style preferences.
Beautify and copy
Click Beautify to format the HTML, then copy it to your clipboard or download the file.
Why Use Our HTML Beautifier?
Frequently Asked Questions
Will the beautifier change how my HTML renders in the browser?
No. Beautification only adjusts whitespace and indentation. The DOM structure and visual rendering of your HTML remain unchanged, with the exception of pre-formatted content which is preserved as-is.
Does it handle inline CSS and JavaScript within HTML?
Yes. The beautifier detects embedded style and script blocks and formats them according to their respective language conventions while maintaining proper HTML structure.
Can I use the beautifier with template languages like EJS or Handlebars?
The tool works best with standard HTML. Template syntax is preserved as-is, though indentation around template blocks may need minor manual adjustments for complex template logic.
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