HTML Beautifier & Minifier
What is an HTML Beautifier?
An HTML beautifier is a tool that formats messy, minified, or poorly indented HTML code into a clean, human-readable structure with proper indentation and line breaks. A minifier does the reverse, compressing HTML by removing all unnecessary whitespace, comments, and optional characters to reduce file size for production deployment. Both are essential tools for web developers working with HTML documents.
How to Use the HTML Formatter
- Paste or type your HTML code into the input textarea above.
- Configure your preferred options: indent size, wrap length, comment and attribute removal.
- Click Beautify to format with proper indentation, or Minify to compress for production.
- Use Copy Output to copy to clipboard, or Download to save as an .html file.
- Try the Load Sample button to see how the tool works with example HTML.
Features
- Smart indentation that understands block, inline, and self-closing HTML elements
- Self-closing tags (br, hr, img, input, meta, link) stay on one line
- Block elements (div, p, h1-h6, ul, ol, section, article) get proper new lines
- Inline elements (span, a, strong, em, b, i) stay inline with content
- Configurable indent size: 2 spaces, 4 spaces, or tab character
- Custom line wrap length for text content
- Option to remove all HTML comments
- Option to remove empty attributes
- Minify mode strips whitespace, comments, and optional quotes
- Copy formatted code to clipboard with one click
- Download result as an HTML file
- 100% client-side processing - your code never leaves your browser
Frequently Asked Questions
Is my HTML code sent to a server?
No. All processing happens entirely in your browser using JavaScript. Your HTML code is never transmitted to any external server, ensuring complete privacy and security.
What is the difference between beautify and minify?
Beautify reformats your HTML with proper indentation and line breaks for readability during development. Minify removes all unnecessary whitespace, comments, and optional characters to reduce file size for production use.
Which self-closing tags does the beautifier handle?
The beautifier recognizes br, hr, img, input, meta, link, area, base, col, embed, source, track, wbr, and the doctype declaration. These are kept on a single line during formatting.
Can I use this for large HTML files?
Yes, but very large files (over 1MB) may cause the browser to slow down since all processing happens client-side. For typical web pages, the tool works instantly.
Does it handle malformed HTML?
The beautifier uses a token-based approach that is tolerant of common formatting issues. Severely malformed HTML may not format perfectly, but an error message will be displayed if the input cannot be processed.