HTML minifier

Reduce HTML markup without changing the page

The HTML minifier removes unnecessary whitespace and comments from markup to create a smaller delivery copy. It is best used on tested templates, generated fragments, and static pages where the original readable source remains available.

When this tool helps

  • Create a compact production version of a static HTML document.
  • Measure how much formatting overhead a template contains.
  • Reduce the size of an embeddable snippet before distribution.

How to get a reliable result

  1. Keep a backup of the readable HTML and its related assets.
  2. Minify the complete markup rather than an accidentally truncated fragment.
  3. Render the result and test forms, scripts, structured data, and whitespace-sensitive areas.

Practical example

Indentation and ordinary comments can usually be removed, but spaces inside pre, textarea, or inline text may affect the visible result.

Important note

Aggressive options can break inline JavaScript, conditional comments, templates, or meaningful whitespace. Treat the output as a build artifact, not the only source copy.