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Hazuu Tools

HTML Formatter & Beautifier

Format, beautify, and clean up your HTML code instantly in a secure, client-side environment.

Input HTML
Output
Formatted output will appear here...
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About HTML Formatter

HTML Formatter is a free online tool that takes minified, compressed, or inconsistently indented HTML and restructures it with consistent indentation and clean line breaks. It uses the js-beautify library to produce output that matches what a developer would write by hand — nested elements are indented, attributes stay on their tag lines, and blank lines between sibling blocks are collapsed to at most one.

The tool is built for moments when readability matters: opening a minified production file to debug a layout issue, reviewing auto-generated markup from a CMS or email builder, or normalising HTML that was copy-pasted from multiple sources with mixed tab and space indentation. You choose the indent style — 2 spaces, 4 spaces, or hard tabs — before formatting, so the result fits your team's coding conventions. A built-in Minify button lets you reverse the process and compress formatted HTML back to a single line for deployment.

Every operation runs entirely inside your browser. No HTML is uploaded, sent to a server, or logged anywhere, which means you can safely format internal templates, unreleased product pages, or code that contains credentials in comments. The tool is free with no account, no rate limit, and no file-size cap beyond your browser's available memory.

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Key Features

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Configurable indentation

Choose 2 spaces, 4 spaces, or hard tabs before formatting. The setting applies to every nesting level, so the output matches your existing code style without manual find-and-replace.

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Two-way formatting and minifying

Format expands and indents minified HTML for readability; Minify compresses it back to a single line by stripping newlines and collapsing whitespace between tags — both in one tool.

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File upload and download

Load an .html, .htm, or .xhtml file directly from disk instead of pasting, then download the formatted result as formatted.html — no clipboard juggling for large files.

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100% client-side privacy

js-beautify runs entirely in your browser. Your code never leaves your machine, making the tool safe for internal templates, staging pages, or files that contain API keys in comments.

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Handles minified and messy input

The parser tolerates tightly minified single-line HTML, inconsistent mixed indentation, and inline styles without throwing errors. The result is consistently formatted regardless of how chaotic the input is.

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Preserves inline and block structure

Inline elements like <strong> and <a> stay on the same line as their parent text; block elements like <div> and <section> each get their own line. This matches browser rendering semantics so diffs stay meaningful.

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How to Use

01

Paste Your HTML

Copy your raw or minified HTML code and paste it into the input editor on the left.

02

Format or Minify

Click "Format" to beautify your code with proper indentation, or "Minify" to compress it into a single line.

03

Copy the Result

Use the copy button to grab your formatted HTML, or download it as a file.

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Example

A minified single-line HTML document is expanded into a properly indented, readable structure with 2-space indentation.

Minified HTML input
<!DOCTYPE html><html lang="en"><head><title>My Page</title></head><body><div class="container"><h1>Hello</h1><p>This is a <strong>sample</strong> paragraph.</p></div></body></html>
Formatted HTML output
<!DOCTYPE html>
<html lang="en">
  <head>
    <title>My Page</title>
  </head>
  <body>
    <div class="container">
      <h1>Hello</h1>
      <p>This is a <strong>sample</strong> paragraph.</p>
    </div>
  </body>
</html>
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Common Use Cases

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    Debugging minified production HTML

    Production builds often ship minified HTML that is impossible to read in DevTools. Paste the source here to expand it into indented, human-readable markup before tracing a layout or attribute bug.

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    Reviewing CMS and email builder output

    Drag-and-drop page builders and email platforms generate deeply nested, poorly indented HTML. Format it first to understand the actual DOM structure before editing or overriding styles.

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    Normalising mixed-indentation team code

    When merges bring together files with 2-space, 4-space, and tab indentation, run everything through the formatter with a shared indent setting to get consistent style before committing.

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    Preparing HTML snippets for code reviews

    Unformatted snippets in pull request comments are hard to review. Format the relevant section so reviewers can see nesting and attribute order clearly without squinting at a wall of markup.

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    Compressing HTML for deployment

    Use the Minify button to strip whitespace and newlines from a template before embedding it in a JavaScript string, a JSON config, or a build script where file size or line count matters.

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Frequently Asked Questions

What is an HTML Formatter? expand_more
An HTML Formatter is a tool that takes messy, minified, or poorly indented HTML code and restructures it with consistent indentation and line breaks, making it easy to read and edit.
Is my HTML code secure when using this tool? expand_more
Yes. All formatting happens locally in your browser using JavaScript. Your code is never uploaded to any server, so your data stays completely private.
Can I customize the indentation style? expand_more
Yes. You can choose between 2 spaces, 4 spaces, or tab-based indentation using the indent selector in the toolbar before formatting.
Does this tool fix broken HTML? expand_more
The formatter focuses on indentation and readability. While it can handle most valid HTML structures, it does not repair missing tags or invalid markup — use an HTML validator for that.
Can I upload an HTML file instead of pasting code? expand_more
Yes. Click the upload button in the toolbar to load an HTML or HTM file directly from your computer into the editor.
How is HTML Formatter different from HTML to Text Converter? expand_more
HTML Formatter preserves all your markup — tags, attributes, and structure — and only changes indentation and whitespace. HTML to Text Converter does the opposite: it removes every tag and returns only the visible text content. Use the formatter when you want to keep working with HTML; use the converter when you need plain text for documents or NLP.
What is the difference between Format and Minify? expand_more
Format expands your HTML onto multiple lines with indentation so it is easy to read and edit. Minify does the reverse: it removes newlines, tabs, and extra spaces to produce a compact single-line version suitable for deployment. Both operations run on the same input, so you can freely switch between them.
Does the formatter change the meaning of my HTML? expand_more
No. It only adjusts whitespace and indentation. Tag names, attribute values, text content, and document order are all preserved exactly. The formatted output renders identically to the input in every browser.