About HTML Minifier
HTML minification is the process of removing unnecessary characters from HTML code without changing its functionality. This reduces file size, which improves page load times and can positively impact your Core Web Vitals scores and SEO rankings.
What Gets Removed
- HTML comments: are removed
- Whitespace: Multiple spaces, tabs, and newlines are collapsed to a single space
- Empty attributes: Attributes like class="" with no value are removed
Typical Size Savings
HTML minification typically achieves 10-30% size reduction. Combined with server-side gzip compression (which you should also enable), the total savings can be 60-80% over unoptimized HTML.
Frequently Asked Questions
Will minifying break my HTML?
Standard minification that removes whitespace and comments should not affect functionality. However, always test your minified HTML before deploying to production. Content inside <pre> or <script> tags with whitespace-dependent formatting may be affected.
Should I minify HTML manually or use a build tool?
For production websites, using a build tool (like webpack, gulp, or a CDN with auto-minification) that automatically minifies on every build is recommended. Manual minification is useful for quick one-time tasks.