HTML Minifier
Free online HTML minifier to minify HTML and compress code. Paste your HTML and instantly remove whitespace, comments, and redundant attributes.
About this tool
This online HTML optimizer compresses your markup for production by stripping out whitespace, blank lines, comments, and redundant attributes. Any verbose or development-ready HTML is reduced to the smallest possible size in one click. It also minifies inline CSS and JavaScript, collapses boolean attributes, and normalizes the doctype, making your pages load faster without changing how they render.
Use Cases
- Production DeploymentReduce HTML file size before deploying to production for faster page loads and lower bandwidth usage.
- Template OptimizationMinify HTML templates in web apps or email campaigns to improve performance and deliverability.
- Lighthouse & Core Web VitalsSmaller HTML payloads directly improve Time to First Byte and First Contentful Paint scores.
- HTML Performance OptimizationOptimize HTML online for your website to ensure fast parsing and rendering by browsers.
How It Works
Paste Your HTML
Copy and paste your HTML source code into the editor.
Click Minify
Press the Minify HTML button and the tool will compress the code instantly.
Copy the Result
Copy the minified output or start over with new code.
Questions & Answers
No. All minification is done entirely in your browser. Your code never leaves your device.
No. The minifier only removes whitespace, comments, and redundant attributes that have no effect on rendering. The output is functionally identical to the original.
If the HTML cannot be parsed, the tool will display an error message so you can identify and fix the issue before minifying.