HTML Beautifier & Formatter
DevMiniTools' HTML Beautifier cleans and indents messy or minified HTML code instantly in your browser, keeping your data entirely local.
What is HTML Beautifier & Formatter?
An HTML Beautifier (or HTML Formatter) is a tool that parses HTML code and formats it with proper indentation, line breaks, and nested structures to make it readable for developers. During development, HTML can quickly become chaotic, nested too deeply, or stripped of spaces (minified). Formatting HTML systematically helps identify syntax bugs, like unclosed tags, duplicate class declarations, or broken hierarchies. This tool processes the markup client-side using standard indentation rules without sending any code to an external server.
How to use HTML Beautifier & Formatter
- Paste your chaotic or minified HTML into the input panel.
- Choose your preferred indentation level (e.g. 2 spaces or 4 spaces).
- Click 'Beautify' to format the HTML instantly.
- Use the output panel to inspect the clean, indented structure.
- Click 'Copy' to copy the formatted code to your clipboard.
HTML Beautifier & Formatter Example
<div><p>Hello <span>World</span></p></div>
<div>
<p>
Hello
<span>World</span>
</p>
</div>Frequently Asked Questions
Is it safe to format HTML containing scripts?
Yes. All processing is run client-side in your browser, meaning any sensitive credentials, tokens, or scripts in your HTML markup never leave your computer.
Does this formatter fix unclosed HTML tags?
It attempts to reconstruct a clean tree, but it will not automatically insert missing closing tags. It highlights structural issues so you can fix them.
What's the difference between HTML beautification and minification?
Beautification adds indentation and line breaks for human readability. Minification strips all unnecessary whitespace and comments to compress file sizes for production.
Can I copy-paste code directly from a live website's Page Source?
Yes. You can paste raw, minified HTML sources from any webpage into this tool to view the clean, formatted DOM hierarchy.
Does this support HTML5 tags?
Yes, it fully supports all modern HTML5 semantic tags like <header>, <article>, <section>, and <nav>.