What is HTML Beautifier?
An HTML Beautifier cleans and reformats HTML code to improve readability. It adds proper indentation, fixes inconsistent spacing, and structures nested elements clearly. Ideal for code exported from WordPress, Wix, Squarespace, or other website builders that often produce messy, single-line HTML.
Unlike a basic formatter, a beautifier focuses on visual clarity—making HTML easy to read, debug, and maintain. It preserves your markup while applying consistent formatting rules such as 2-space or 4-space indentation for nested elements.
The beautifier handles complex nesting, self-closing tags, and attribute formatting. Whether you're refactoring legacy code, learning HTML structure, or preparing code for code review, beautified HTML makes the job easier.
How to Use HTML Beautifier
- Paste or upload HTML: Paste your HTML into the editor or upload an .html or .htm file. The tool accepts both minified and partially formatted HTML.
- Beautify automatically: The tool instantly beautifies your HTML with proper indentation, line breaks, and consistent spacing. Nested elements are aligned for easy reading.
- Review the output: Check the beautified result in the output panel. Structure, attributes, and content remain unchanged—only formatting is improved.
- Copy or download: Copy the beautified HTML to clipboard or download it as a file for use in your project or IDE.
No signup required. Works on desktop and mobile.
Frequently Asked Questions
What is the difference between HTML formatter and beautifier?
Both improve readability. A beautifier focuses on visual clarity and consistent styling—indentation, spacing, and structure. A formatter often includes validation, error highlighting, and minification options. Use a beautifier when you mainly want clean, readable code.
Does beautifying change my HTML?
No. Beautifying only adjusts whitespace, indentation, and line breaks. Your tags, attributes, values, and content remain exactly the same. The output is functionally identical to the input.
Can I beautify large HTML files?
Yes. The tool handles large HTML files efficiently. There are no arbitrary file size limits, and processing is typically instant for documents up to several thousand lines.
Does it work with HTML5 and modern syntax?
Yes. The beautifier supports all HTML5 elements, custom attributes, data attributes, and modern markup patterns including self-closing tags and SVG elements.