Code Minifier

How do I minify JavaScript code?

Select JavaScript from the dropdown, paste your code. The minified version appears instantly below. Copy or download the result.

How do I minify CSS code?

Select CSS, paste your stylesheet. Whitespace, comments, and unnecessary characters are removed. File size typically reduces 20-60%.

Will minification break my code?

No. Proper minification only removes whitespace, comments, and newlines. Functionality is preserved. Always test minified code before production deployment.

How much file size reduction can I expect?

Typically 20-60% depending on original formatting. Code with lots of comments and whitespace sees larger reductions. Already minified code will not shrink further.

How do I minify HTML?

Select HTML, paste your markup. Whitespace between tags is compressed, comments are removed. Be careful with pre/code blocks that rely on whitespace.

Can I minify multiple files at once?

This tool processes one file at a time. Paste code, copy result, repeat. For build pipelines, use Webpack, Vite, or similar bundlers.

Does minification generate source maps?

No. This simple minifier does not generate source maps. For production builds with source maps, use build tools like Webpack or esbuild.

Is minification the same as compression?

No. Minification removes unnecessary characters. Compression (like gzip) reduces file size for transfer. Use both for best results in production.