Note: Robust code minification requires complex parsing and transformation, usually done with tools like Terser (JS) or CSSNano (CSS) during a build process or on a server. This demo provides the UI, but does not perform actual minification.
Paste code, select language. Click Minify. Remove whitespace and comments. Show size reduction. Copy.
Minified code loads faster. Reduce file sizes easily—simple performance boost.
No, removes unnecessary characters only.
20-60% typical.
Yes, standard practice.
Yes, ES6+ supported.
Minify JavaScript and CSS files with the Toolzie JS & CSS Minifier to reduce file sizes and improve page load speed. Remove whitespace, comments, and unnecessary characters — and see the before/after size reduction.
Typically 20–60% depending on how much whitespace and comments are in the original. Gzip compression further reduces this in transit.
Yes — minification only removes whitespace and comments. Logic, functionality, and variable names are preserved (unless you use an obfuscator).
Use the Toolzie Code Editor or a separate formatter to beautify minified code back to readable format.
For production projects, use a build tool like Webpack or Vite. This tool is great for quick manual minification or one-off files.