JavaScript Minifier

JavaScript Minifier uses Terser to parse your code, which is never executed. It removes comments and whitespace, applies Terser's default safe optimizations and shortens local variable names. Top-level names, property names, function and class names and debugger statements are kept, and the syntax is not transpiled or polyfilled. This is a minifier, not an obfuscator. Sizes are measured in UTF-8 bytes; the output can be larger than the input in some cases. Code with syntax errors is reported and left untouched. Scripts are parsed as classic scripts, so import/export and top-level await are not accepted. Everything runs in your browser and your code is never uploaded.