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HTML Minifier

Compress HTML files by removing unnecessary whitespace, comments, and characters. Reduce page size to significantly improve website load speed.

HTML Input

Paste your HTML code and customize minification options

Content Options

Element Options

Advanced Options

What Is the HTML Minifier Tool?

The HTML Minifier is a free online utility that helps you compress HTML files by removing unnecessary whitespace, comments, and redundant code, reducing page size to significantly improve website load speed and Core Web Vitals.

The HTML Minifier sends your HTML code to a server-side API powered by the html-minifier-terser library. The minification engine removes comments, collapses whitespace, removes redundant attributes, minifies inline CSS and JavaScript, and applies various optimizations to reduce file size while preserving complete functionality. After minification, the tool displays a file size comparison showing exactly how much was saved.

Key Features

  • Comprehensive HTML compression with 17+ configurable optimization options
  • Automatic comment removal and whitespace collapsing for maximum size reduction
  • Options to remove redundant, empty, and boolean attributes
  • Inline CSS and JavaScript minification for complete page optimization
  • Attribute sorting and class name organization for consistent output
  • File size comparison showing compression statistics and savings

Why Use This Tool

  • Accelerates page load times by reducing HTML file size by 30-70%
  • Improves Core Web Vitals scores, directly impacting search engine rankings
  • Reduces bandwidth consumption and hosting costs for high-traffic websites
  • Removes verbose comments and unnecessary code that can expose implementation details
  • Delivers better user experience on mobile devices and slow network connections

Common Use Cases

  • Optimizing production HTML output before deployment to web servers and CDNs
  • Reducing page weight for performance-sensitive landing pages and marketing sites
  • Preparing HTML email templates with minimized code for faster rendering
  • Compressing HTML documentation and knowledge base articles for faster delivery
  • Integrating into build pipelines and CI/CD workflows for automated optimization

Technical Details

This tool uses the html-minifier-terser npm package via a server-side API endpoint. The API accepts HTML content and an options object, processes the minification server-side, and returns the compressed output along with size statistics. The library provides granular control over each optimization aspect.

Frequently Asked Questions

Is this tool free to use?

Yes, the HTML Minifier is completely free to use with no signup, registration, or usage limits required.

Is my data sent to a server?

Your data is sent to our server-side API for processing only. It is not stored, logged, or shared with any third parties and is discarded immediately after processing.

What is HTML minification?

HTML minification removes unnecessary characters like whitespace, comments, and unused quotes without changing functionality, reducing file size and improving load times.

Is minified HTML still valid?

Yes, minified HTML is functionally identical. All tags, attributes, and content are preserved and render the same way in browsers.

What library is used?

This tool uses html-minifier-terser, a powerful HTML minification library that provides fine-grained control over optimizations.

Can I use this tool offline?

This tool requires a server-side API call, so an internet connection is needed for processing.

Credits & Source

Maintained by Vijay Hardaha. This tool is built with modern web technologies and industry-standard open-source libraries to deliver reliable, high-quality results.

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