Practical guidance
Keep source code separate from minified output. Use a parser suited to CSS or JavaScript and preserve required licence notices. Minification complements gzip or Brotli but does not replace removing unnecessary dependencies.
Before using this tool
Define what you need from CSS and JavaScript minifier and prepare the relevant input. When diagnosing a live service, record the test time and connection conditions so you can compare results after configuration changes. Check findings against the documentation for your software.
Tool availability
This is currently an information page. No working form, calculations or submission to diagnostic services is available yet. The interface and supported input formats will be documented when functionality is released.