HTML Beautifier, Minifier & Cleaner

Format messy HTML for readability, minify for production, or clean up unwanted code. All processing happens in your browser.

Beautify Options
Input HTML 0 chars
Output 0 chars

What is HTML Beautification?

HTML beautification (or formatting) transforms compressed or poorly indented HTML into clean, readable code with proper indentation and line breaks. This makes the code easier to read, debug, and maintain.

Well-formatted HTML is essential during development when you need to understand the document structure, find specific elements, or collaborate with other developers.

What is HTML Minification?

HTML minification removes unnecessary characters from code without changing functionality. This includes whitespace, comments, and optional closing tags. The result is smaller file sizes and faster page loads.

Minified HTML is ideal for production environments where performance matters. Every byte saved reduces bandwidth usage and improves Core Web Vitals metrics.

What is HTML Cleaning?

HTML cleaning removes unwanted attributes, tags, and code from HTML. This is useful when copying content from word processors, CMSs, or other sources that add bloated markup.

Common cleanup targets include inline styles, event handlers (like onclick), empty attributes, and script tags. Clean HTML is lighter, more secure, and easier to style with external CSS.

When to Use Each Mode

  • Beautify: During development, debugging, code reviews, or when reading unfamiliar code.
  • Minify: Before deploying to production, for email templates, or when optimizing page speed.
  • Clean: After copying from Word/Google Docs, sanitizing user input, or removing legacy inline styles.

Best Practices for HTML Optimization

Beyond formatting, these practices help create efficient, maintainable HTML:

  • Use semantic tags: Elements like <header>, <nav>, <main>, and <article> improve accessibility and SEO.
  • Avoid inline styles: Keep styles in external CSS files for better caching and maintainability.
  • Minimize nesting: Deep nesting increases file size and makes code harder to read.
  • Remove unused code: Delete commented-out code and unused elements before production.
  • Validate your HTML: Use the W3C validator to catch errors that could affect rendering.
  • Automate minification: Use build tools like Webpack or Gulp to minify HTML automatically during deployment.