HTML Formatter & Beautifier

What is an HTML Formatter?

An HTML formatter is a tool that automatically organizes and beautifies HTML markup by applying proper indentation, nesting, and structure. It transforms minified or poorly formatted HTML into clean, readable code that's easy to understand and maintain. This tool is essential for debugging, learning HTML structure, and ensuring consistent code formatting across your projects.

How to Use This Tool

1. Paste your HTML code into the input area on the left, or click "Load Sample" to see an example
2. Choose your preferred indentation style (2 spaces, 4 spaces, or tabs) from the settings
3. Toggle "Preserve comments" if you want to keep HTML comments in the output
4. Click "Format & Beautify" to organize your HTML with proper indentation and nesting
5. Use the "Copy Output" button to copy the formatted result to your clipboard
6. View statistics about your HTML including character count, line count, and file size

Common Use Cases

• Debugging Minified HTML: Make compressed production HTML readable for debugging issues
• Code Review: Ensure consistent HTML formatting across your team and codebase
• Learning HTML: Study properly formatted HTML to understand tag nesting and document structure
• Cleaning Minified HTML: Beautify HTML from build tools or third-party sources
• Email Template Development: Format complex email HTML for better maintainability
• Legacy Code Maintenance: Reorganize old or poorly formatted HTML files

Features

• Syntax Highlighting: Color-coded HTML for better readability with proper tag and attribute coloring
• Proper Nesting: Automatically indents nested elements to show document structure
• Customizable Indentation: Choose between 2 spaces, 4 spaces, or tabs
• Comment Preservation: Option to keep or remove HTML comments
• Copy to Clipboard: One-click copying of formatted output
• Statistics Display: View character count, line count, and file size
• Client-side Processing: All formatting happens in your browser - your code stays private
• Auto-fix Common Issues: Prettier automatically fixes many HTML formatting issues

Frequently Asked Questions

Is this tool free to use?

Yes! This HTML formatter is completely free to use with no registration required. There are no limits on usage or file size.

Is my code secure?

Absolutely. All HTML formatting happens entirely in your browser using JavaScript. Your code never leaves your computer and is never sent to any server. This makes it safe to use with proprietary templates and sensitive markup.

Does this validate HTML?

This tool primarily focuses on formatting and beautifying HTML. While Prettier (the formatting engine) can handle most HTML and will report severe syntax errors, it's not a full HTML validator. HTML is generally forgiving of errors, so this tool will format even imperfect HTML. For comprehensive HTML validation, consider using the W3C Markup Validation Service alongside this formatter.

Can I use this for large HTML files?

Yes! Since all processing happens in your browser, there's no server-side file size limit. However, very large files (several megabytes) may take a moment to process depending on your computer's performance.

Will this work with template engines like Vue, React, or Angular?

This tool is designed for standard HTML. While it may work with some template syntax, it's optimized for pure HTML. For Vue templates, JSX, or other framework-specific syntax, consider using the JavaScript Beautifier tool instead, which supports these formats.

Does this work offline?

Once the page is loaded, all formatting functionality works offline. The tool doesn't require an internet connection to format HTML.

Are there keyboard shortcuts available?

Yes! Use Tab to navigate between buttons and text areas, Enter to activate focused buttons, and Escape while focused on text areas to quickly clear content.