HTML Formatter: Beautify & Minify HTML Code Online
Beautify, format, or minify HTML code with custom indentation.
Privacy First: 100% Client-Side Processing
Processed in your browser. Files are never uploaded.
How to Use the HTML Formatter: Beautify & Minify HTML Code Online
- 1Paste your raw or minified HTML into the editor.
- 2Choose indentation size (2 spaces, 4 spaces, or tabs).
- 3Click 'Beautify HTML' for clean formatting or 'Minify HTML' to strip whitespace.
- 4Copy formatted HTML with one click.
Formula & How It Works
HTML Formatting Engine
Parses DOM token tree and rebuilds formatted code with proper tag nesting and indentation.
Worked Examples
Unformatted Markup
Input: <div><p>Hello</p></div>
Explanation: Indented with clean 2-space depth.
Minification
Input: <div> <h1>Title</h1> </div>
Explanation: Strips extraneous whitespace between tags.
Nested Lists
Input: <ul><li>Item 1</li><li>Item 2</li></ul>
Explanation: Structures list hierarchy clearly.
Frequently Asked Questions
How do you beautify HTML?▼
Paste your code and click 'Beautify HTML' to auto-indent nested tags and clean up hierarchy.
Why should I minify HTML?▼
Minifying removes unnecessary spaces and line breaks, reducing page file size for faster page load times.
Does this formatter break `<pre>` tags?▼
No, our parser protects `<pre>` and `<code>` blocks to ensure sensitive whitespace is preserved.
What indentation should I use?▼
2 spaces is standard in modern web development (Google/Airbnb style guides), while 4 spaces is traditional.
Is my HTML uploaded to any server?▼
No, all formatting and minification runs 100% locally in your browser memory.
Is this tool free?▼
Yes, our developer utilities are completely free without limits.
Quick Reference & Conversion Table
| Feature | Beautify Mode | Minify Mode |
|---|---|---|
| Readability | High (indented hierarchy) | Low (compact single line) |
| File Size | Standard | Smallest possible (10-30% reduction) |
| Indentation | Custom (2 spaces, 4 spaces, tabs) | None (whitespace removed) |
| Void Elements | Preserved cleanly | Collapsed |
⚠️ Common Pitfalls to Avoid
- •Minifying HTML that contains sensitive inline `<pre>` or `<textarea>` blocks without whitespace preservation.
- •Treating self-closing void elements (like `<img>` and `<br>`) as closing blocks.
💡 Practical Real-World Uses
- •Cleaning up messy HTML scraped from web pages or CMS exports.
- •Preparing minified HTML templates for high-speed email marketing delivery.
- •Formatting code examples for developer documentation and blogs.
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