What is HTML Minifier?
This HTML minifier trims frontend code down. Paste your HTML and click Minify: the tool removes HTML comments (<!-- -->), collapses runs of whitespace to single spaces, and strips spaces between and around tags, producing compact single-line HTML with a live "X% smaller" readout. Copy the result with one click. Minification runs locally — your code is never uploaded. Ideal for shrinking page weight, speeding up loads, and compressing email templates and inline scripts.
▶Use Cases5 scenarios
- ◆Reducing HTML page weight
- ◆Compressing email HTML templates
- ◆Minifying inline scripts and styles
- ◆Preparing compact code for production
- ◆Comparing size before and after
▶How to Use5 steps
- 1Paste HTML code into the input box
- 2Click Minify HTML
- 3Review the output and the percentage saved
- 4Click Copy to grab the result
- 5Compare original vs minified size
▶Features8 features
- ✓Free
- ✓No signup
- ✓Strips HTML comments
- ✓Collapses consecutive whitespace
- ✓Removes spaces between tags
- ✓Shows percentage saved
- ✓One-click copy
- ✓100% local processing
▶FAQ7 questions
What is an HTML minifier?
An online tool that compresses HTML. Input: HTML code. Output: compact HTML with comments and extra whitespace removed, plus the percentage saved. Used to shrink page weight and email templates. Runs locally.
Does minification change behavior?
No. Only comments and extra whitespace are removed; tag structure and attributes are untouched, so rendering stays identical.
How is the percentage calculated?
As (1 - minified chars / original chars) × 100, rounded to one decimal place.
What exactly is removed?
HTML comments (<!-- -->) and extra whitespace between and around tags.
Does it minify inline JavaScript?
The current version only cleans whitespace and comments and does not rewrite JS; use the site's JS minifier for deeper compression.
Is my code uploaded?
No. All processing happens locally with no network requests.
Is it good for email templates?
Yes — compact single-line HTML is friendlier to email clients and reduces template size.