HTML Formatter | Beautify HTML Code Online
Format and beautify HTML code with customizable indentation using Prettier. Real-time formatting with proper tag nesting and attribute alignment. Fast, private, and 100% in-browser.
How to Use This Tool
- 1
Paste or type your HTML code into the input area.
- 2
Adjust tab width (2 or 4 spaces) and print width if needed.
- 3
See the formatted HTML appear in real-time (Live mode) or click Format (Manual mode).
- 4
Copy or download the beautifully formatted result.
Use Cases & Examples
Clean Up Minified HTML
Quickly format minified or compressed HTML from production builds for debugging and inspection.
Code Review & Collaboration
Ensure consistent formatting across team projects with standardized indentation and spacing.
Learning & Education
Understand HTML structure better with properly formatted and indented code examples.
Template Cleanup
Format email templates, server-side templates, or generated HTML for better maintainability.
How HTML Formatting Works
Uses Prettier's HTML parser to format code according to best practices.
Automatically handles tag nesting, attribute alignment, and whitespace sensitivity.
Processes code entirely in your browser using WebAssembly for fast performance.
Supports HTML5, custom elements, and modern web component syntax.
Frequently Asked Questions
Q.Is my HTML code sent to a server?
A. No. All formatting happens locally in your browser using Prettier. Your code never leaves your device.
Q.Does this support HTML5?
A. Yes, it supports modern HTML5 syntax including semantic tags, custom attributes, and data attributes.
Q.Can I customize the indentation?
A. Yes, you can set tab width (2 or 4 spaces) and print width (line length) to match your coding style.
Q.Will this fix invalid HTML?
A. The formatter will try to format your HTML, but it won't fix structural errors. Use an HTML validator for error checking.
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