Utilko logo Utilko

HTML Minifier

Minify HTML by removing whitespace, comments, and optional tags. Reduce HTML document size to improve page load speed and server response times.

Used 16.7K times today

How to Use HTML Minifier

  1. 1

    Paste your HTML

    Copy your HTML document or template and paste it into the input area.

  2. 2

    Click Minify

    Press "Minify" to remove whitespace between tags, HTML comments, and optional attributes.

  3. 3

    Copy the result

    Copy the minified HTML for server-side rendering templates, email HTML, or static HTML files.

Frequently Asked Questions

Is HTML minification safe?
Removing whitespace between block elements and stripping comments is generally safe. Whitespace-sensitive elements like pre and textarea are preserved. Always test minified HTML across browsers.
Does it remove inline CSS and JS?
The tool optionally minifies inline style attributes and script blocks. Enable these options if you want maximum compression.
How much does HTML minification reduce file size?
HTML minification typically reduces file size by 10–30%. When served with gzip or Brotli compression, the combined saving can reach 60–80%.

About HTML Minifier

The HTML Minifier reduces HTML document size by eliminating redundant whitespace, comments, and optional tags that browsers do not need at runtime. Smaller HTML responses improve Time to First Byte (TTFB), reduce network payload, and contribute to better Core Web Vitals scores, which directly impact search engine rankings.

This tool is particularly useful for developers working with server-rendered HTML, email templates, or AMP pages where payload size has a direct impact on performance. For large-scale applications, consider using server-side minification middleware, but this tool is perfect for quick manual checks and one-off compressions.

More Developer Tools Tools

JSON Formatter

Format, beautify, and validate JSON instantly. Paste raw JSON and get a clean, indented, human-readable output with syntax error detection.

JSON Minifier

Minify and compress JSON by removing whitespace and comments. Reduce JSON payload size instantly for faster API responses and smaller storage footprint.

JSON to CSV Converter

Convert JSON arrays to CSV format instantly. Transform nested JSON data into spreadsheet-ready CSV files with automatic header detection.

JSON to YAML Converter

Convert JSON to YAML format instantly online. Transform JSON config files, API schemas, and data structures into clean, readable YAML syntax.

Base64 Encoder / Decoder

Encode text or decode Base64 strings instantly online. Convert between plain text and Base64 encoding for data URLs, authentication headers, and API tokens.

URL Encoder / Decoder

Encode or decode URLs and query strings instantly. Convert special characters to percent-encoding and back for safe URL transmission and debugging.

HTML Encoder / Decoder

Encode special characters to HTML entities or decode HTML entities back to plain text. Prevent XSS and display HTML code safely in web pages.

UUID Generator

Generate UUID v1, v4, and v5 universally unique identifiers instantly. Create single or bulk UUIDs for databases, APIs, and distributed systems.