JavaScript Minifier
Remove comments and unnecessary whitespace from JavaScript to reduce file size. Fast, safe, and free.
⚠️
Note: This tool performs safe minification — removing comments and collapsing whitespace only. It does not rename variables or perform AST-level transforms. For production use, tools like Terser or UglifyJS offer deeper optimization.
Original: —
Minified: —
Saved: —
Reduction: —
JavaScript Input
Minified Output
What This Minifier Removes
// Single-line comments
All // … comments are stripped from every line.
/* Block comments */
Multi-line /* … */ blocks are removed entirely.
Excess whitespace
Multiple spaces, blank lines, and leading/trailing spaces are collapsed.