JS Minify / Beautify

It uses terser, a widely used JavaScript minifier and compressor that also understands modern syntax.

Terser shortens variable and function names and strips whitespace and comments, and since this tool doesn't generate a source map, browser dev tools can't map the minified code back to readable original lines.

For syntactically valid JavaScript, minification preserves behavior; if there's a syntax error, the tool reports the line and column so you can fix it before minifying — everything runs locally without uploading your code.