Uncompress HTML Code - HTML Formatter
Beautify and format minified HTML code instantly. Add proper indentation, line breaks, and improve code readability with our free HTML formatter tool.
Minified HTML Input
Formatted HTML
Why use our HTML Beautifier?
Four Format Styles
Choose standard, compact, readable, or tab-indented formatting for your HTML.
Instant Beautification
Paste minified HTML and get indented, readable markup in one click.
100% Client-Side
Your HTML is formatted locally — templates and snippets stay private.
What is an HTML Beautifier?
An HTML beautifier (also called an HTML formatter or uncompressor) adds indentation, line breaks, and consistent spacing to minified or messy HTML so developers can read and debug it. Unlike minifiers that remove whitespace, beautifiers expand markup for readability without changing how the page renders.
Our free online HTML beautifier accepts compressed one-line HTML and formats it with your choice of style — standard indentation, compact spacing, extra-readable layout, or tab indentation. Script, style, pre, and textarea contents are preserved. Copy or download the formatted result instantly in your browser.
Formatting Options
- Standard:Two-space indentation with balanced line breaks between tags.
- Compact:Minimal extra whitespace — readable but closer to the original size.
- Readable:Extra spacing between elements for maximum clarity during review.
- Tab indentation:Use tab characters instead of spaces for indent levels.
- Content preservation:Script, style, pre, and textarea bodies are left untouched.
- Size stats:Compare byte size, line count, and character count before and after.
Common Use Cases
Debug Minified Pages
Expand one-line HTML from production builds to trace structure and nesting issues.
Code Review
Beautify pasted HTML snippets before reviewing pull requests or vendor templates.
Email Template Editing
Format compressed HTML emails to edit tables, inline styles, and conditional comments.
Learning HTML
See how tags nest and close when studying scraped or generated markup.
CMS & Export Cleanup
Pretty-print HTML exported from WordPress, Shopify, or page builders.
Diff Preparation
Format both sides of an HTML comparison so changes are easier to spot.
How to Beautify HTML
Paste Minified HTML
Copy compressed or one-line HTML into the input area.
Choose a Format Style
Select Standard, Compact, Readable, or Tab Indentation.
Review the Output
Check the formatted HTML and compare size and line count statistics.
Copy or Download
Copy the beautified markup or download it as an .html file.
Benefits of HTML Beautification
Faster Debugging
Indented markup makes missing closing tags and nesting errors obvious.
No Functionality Change
Formatting adds whitespace only — rendered output stays the same.
Multiple Style Options
Pick the indentation style that matches your team or editor preferences.
Safe for Embedded Code
Script and style block contents are preserved without reformatting.
Private Processing
Proprietary templates and client HTML never leave your browser.
Completely Free
Beautify unlimited HTML with no account or usage caps.
HTML Formatting Tips
- •Dev only, not production: Formatted HTML is larger — minify again before deploying to production.
- •Invalid HTML still formats: The beautifier does not validate syntax — fix errors separately after formatting.
- •Inline JS/CSS untouched: Contents inside script, style, pre, and textarea tags are preserved as-is.
- •Pair with minifier: Use our HTML minifier to compress again after editing formatted markup.
- •Large files: Very large HTML inputs may take a moment — wait for the output to finish rendering.
- •Check byte size: Watch the size stats panel — readable mode adds the most whitespace.
Beautify Your HTML Now
Whether you are debugging minified markup, reviewing email templates, or learning HTML structure, our free HTML beautifier formats compressed code with proper indentation in your browser.
Scroll up, paste your HTML, pick a format style, and copy the result. No registration required, completely free, and your code stays 100% private on Quick Note.
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Frequently Asked Questions
Does formatting HTML change its functionality?
No. Formatting only adds whitespace and line breaks for readability. The HTML structure and rendered output remain unchanged. Script, style, pre, and textarea contents are preserved.
Will formatted HTML increase file size?
Yes. Adding indentation and line breaks increases file size. Use formatted HTML for development and minify again for production deployment.
What formatting styles are available?
The tool offers Standard (two-space indent), Compact (minimal spacing), Readable (extra spacing), and Tab Indentation formats.
Can I format inline JavaScript and CSS?
The tool preserves script and style block contents as-is without reformatting their interiors. For dedicated JS or CSS formatting, use specialized formatters for those languages.
Does this tool validate HTML?
No. The beautifier formats markup for readability but does not check for syntax errors or W3C compliance.
Is my HTML uploaded to a server?
No. All formatting happens entirely in your browser. Your HTML is never sent to any server.
Can I download the formatted HTML?
Yes. Click Download to save the beautified HTML as a .html file.
Is the HTML beautifier free?
Yes. It is completely free to use with no registration, downloads, or hidden fees.