codeDev Tool

HTML Formatter & Minifier

Beautify messy HTML with proper indentation, or minify it for production. Runs entirely in your browser.

Indent:
warning
Input HTML
Output

Frequently Asked Questions

An HTML formatter (beautifier) reformats code with consistent indentation and line breaks, making it easy to read and edit. It does not change how the page renders — only the structure and whitespace of the source code.
Minification removes all unnecessary whitespace, newlines, and comments from HTML code, reducing its file size without changing how it renders in the browser. Smaller HTML files load faster and can improve Core Web Vitals scores.
Void elements in HTML5 cannot have children and don't need a closing tag: area, base, br, col, embed, hr, img, input, link, meta, param, source, track, wbr. The formatter handles these automatically and does not add an extra indent level for them.
Generally no — formatting only changes whitespace between tags. However, whitespace between inline elements (like <span>, <a>, <img>) can sometimes affect visual spacing. The formatter preserves content inside <pre>, <script>, and <style> tags without reformatting.

Hello World

This is a paragraph with bold and italic text.

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HTML Formatter — Overview

The HTML Formatter beautifies minified, compressed, or poorly indented HTML markup into clean, readable code with proper nesting and indentation. Minified HTML is common in production environments where every byte of file size matters, but it becomes nearly impossible to read or debug when you need to inspect or modify it. This tool parses the HTML structure and rebuilds it with consistent indentation (configurable as 2 or 4 spaces, or tabs), preserving all attributes, content, and comments. It also handles formatting of inline styles and can optionally collapse or expand attribute lists for very long opening tags. Whether you're reverse-engineering a competitor's page structure, debugging a template, or cleaning up auto-generated HTML from a CMS, the formatter makes your markup immediately navigable and maintainable without requiring a full IDE.

Common Use Cases

How to Use This Tool

Paste your HTML into the input editor and click Format to beautify it with proper indentation. Use the indentation selector to choose 2 spaces, 4 spaces, or tabs. The formatted HTML appears in the output panel, ready to copy back into your project.

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