HTML Beautifier & Minifier

Format, optimize, and minify HTML code

Original HTML

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Options

Mode

Indent Style

Remove Comments

Strip HTML comments

Remove Empty Lines

Clean up blank lines

Collapse Whitespace

Merge multiple spaces

Remove Optional Tags

Strip html/head/body tags

Minify Inline CSS

Compress style tags

Minify Inline JS

Compress script tags

Beautified HTML

About This Tool

This tool formats or compresses HTML code depending on what you need. Beautify mode adds proper indentation and line breaks so you can actually read nested elements. Minify mode strips whitespace and optional characters to shrink file size for production. The validator catches common issues like unclosed tags or mismatched elements before they break your page. Inline CSS and JavaScript get minified too when you're compressing. Everything runs in your browser—nothing gets sent to a server.

How to Use

Paste your HTML or upload a file
Pick Beautify to format with indentation, or Minify to compress
Adjust settings: indent size (2/4 spaces or tab), whether to strip comments, compress inline CSS/JS
The output updates automatically as you type or change settings
Copy the result or download as a file

Common Use Cases

Debugging vendor HTML: Got a one-liner from a CMS or build tool? Beautify it so you can actually see what's going on
Production optimization: Shave 15-30% off your HTML before deployment
Code review: Format HTML consistently so diffs show real changes, not formatting noise
Learning HTML: Paste complex markup and beautify it to understand the structure
Email templates: Minify HTML emails to stay under size limits and improve deliverability

Limitations

This is a syntax-based formatter, not a full HTML parser—edge cases like CDATA sections or server-side includes may not format perfectly
The validator catches structural issues (unclosed tags) but won't validate against HTML5 spec compliance
Very large files (5MB+) may slow down your browser
Pre/code/textarea whitespace is preserved in beautify mode but may collapse in minify mode—check these manually
Template syntax (Jinja, Handlebars, Blade) may cause validation warnings

Created by Sofyan Setiawan – Full-Stack Developer

Software engineer with 8+ years of experience building web applications, developer tools, and API integrations. Creator of CodingTool.dev, helping developers with everyday coding tasks.