HTML Minifier

What is the HTML Minifier?

Minify HTML by removing comments and whitespace between tags. Minifying HTML removes comments and unnecessary whitespace between tags, reducing page weight slightly for faster delivery.

How to use the HTML Minifier

1. Paste or type your your text into the box (a sample is pre-filled so you can see how it works).
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: result, size reduction.
4. Use the 📊 chart to see the result visually, then copy or share it.

Worked example

With the sample input, the HTML Minifier returns size reduction: 34.2%.

Where the HTML Minifier helps in real life

You have a static landing page and want it as lean as possible before launch. Minifying the HTML trims comments and spacing that visitors never see.

A developer embeds an HTML email template in an application and wants to keep the stored string compact.

Common mistakes to avoid

• Minifying templates that rely on whitespace inside pre or textarea elements.
• Editing the minified file instead of the source.
• Removing conditional comments that older email clients need.
• Skipping a visual check after minifying.

💡 Practical tip: Server compression usually saves far more than HTML minification, so make sure both are switched on.

Tips for better results

• Keep a readable source file and minify a copy for production.
• Check pages with inline elements, where spaces between tags matter.
• Enable gzip or Brotli on the server for bigger savings.

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