HTML Formatter
Result will appear here...About HTML Formatter
The HTML Formatter & Beautifier formats messy, compressed HTML markup into clean, properly indented DOM hierarchy trees with customizable indentation depth, tag wrapping, and inline element preservation.
How to Use HTML Formatter
Step 1
Paste unformatted or minified HTML into the editor.
Step 2
Choose your preferred indentation spacing.
Step 3
View the cleaned hierarchical HTML structure in real time.
Step 4
Click "Copy HTML" to copy to your clipboard.
Practical Use Cases for HTML Formatter
Template & CMS Cleanup
Clean up scraped HTML, WordPress template files, and raw email newsletters into clean, maintainable markup.
Frontend Component Debugging
Inspect deeply nested div tags, unclosed element hierarchies, and semantic HTML5 structures during web development.
Input & Output Examples
Formatting Minified HTML Markup
<div class="card"><h1>Title</h1><p>Description text</p><button>Click</button></div>
<div class="card">\n <h1>Title</h1>\n <p>Description text</p>\n <button>Click</button>\n</div>
Key Features & Performance
- ✓Beautifies raw HTML5, XHTML, and XML documents.
- ✓Configurable indentation (2 spaces, 4 spaces, Tab).
- ✓Preserves inline elements (<span>, <a>, <b>) without awkward whitespace splits.
- ✓Auto-formats embedded <style> CSS and <script> JavaScript blocks.
- ✓100% Client-Side memory execution.
- ✓1-Click Copy beautified HTML.
Key Terminology & Definitions
DOM (Document Object Model)
A cross-platform, language-independent interface that treats an XML or HTML document as a hierarchical tree structure of node objects.
Void Elements
Self-closing HTML tags (such as <img>, <input>, <br>, <hr>, <meta>) that cannot have child nodes or closing tags.