No. Formatting uses js-beautify entirely in your tab.

Does it change attribute order?

The formatter focuses on whitespace and line breaks; attribute order may follow the beautifier defaults.

HTML Formatter Online — Beautify & Minify HTML (Free, No Upload)

HTML

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width,initial-scale=1">
  <title>ToolDock — Developer Tools</title>
  <link rel="stylesheet" href="styles.css">
</head>

<body>
  <header class="header">
    <nav class="nav"><a href="/" class="nav__logo">ToolDock</a>
      <ul class="nav__links">
        <li><a href="/tools">Tools</a></li>
        <li><a href="/about">About</a></li>
      </ul>
    </nav>
  </header>
  <main>
    <section class="hero">
      <h1>Fast browser-based tools</h1>
      <p>No sign-up. No server. Just tools.</p><a href="/tools" class="btn btn--primary">Explore tools</a>
    </section>
  </main>
</body>

</html>

Files never leave your browser.

Drag and drop a file here, or tap to select

🔒 Runs in your browser · No uploads · Your data never leaves your device

How to use

Choose mode
Use Beautify for readable markup or Minify for a single-line build.
Set indentation
For Beautify, pick 2 or 4 spaces for each nesting level.
Save HTML
Copy the output or download a .html file; upload a file via the drop zone below.

Common use cases

Cleaning up copied HTML from a CMS — Format messy HTML pasted from a CMS or email template editor to get readable, properly indented markup.
Minifying HTML for a static site — Minify HTML pages to reduce file size and improve page load performance before deployment.

Examples

Minified snippet
Beautify expands tags onto multiple lines.
Input
```
<div><span>Hi</span></div>
```
Output
```
<div>
  <span>Hi</span>
</div>
```

Frequently asked questions

Is my HTML uploaded?: No. Formatting uses js-beautify entirely in your tab.
Does it change attribute order?: The formatter focuses on whitespace and line breaks; attribute order may follow the beautifier defaults.

Key concepts

HTML indentation: Adding spaces or tabs to nested HTML elements to visually represent the document's structure and make it easier to read.
HTML minification: Removing whitespace, comments, and unnecessary characters from HTML to reduce file size — typically 10–30% smaller.

You might find these useful too.

HTML Formatter tool

How to use

Choose mode

Set indentation

Save HTML

Common use cases

Examples

Minified snippet

Frequently asked questions

Key concepts

Related tools

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