JavaScript Minifier

Minify JavaScript code for production deployment.

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JS minification goes beyond removing whitespace. It shortens variable names, inlines functions, and eliminates dead code. 40-80% size reduction is common.

The Transformation

Before:

function calculateTotal(items) {
  let sum = 0;
  for (let item of items) {
    sum += item.price;
  }
  return sum;
}

After:

function calculateTotal(t){let e=0;for(let n of t)e+=n.price;return e}

Debugging minified code: That's what source maps are for. They map minified code back to original source.