JavaScript Formatter & Minifier

JavaScript formatter and minifier

Formatting expands compact JavaScript into readable indentation and line breaks. Minification performs the opposite transformation by removing comments, collapsing whitespace, and trimming spaces around punctuation.

Beautify versus minify

Mode	Best for	Result
Beautify	Review and debugging	Readable indentation
Minify	Delivery and caching	Smaller text

function greet(name) {
  return `Hello, ${name}!`;
}

The formatter tracks strings and template literals while adding structure around braces, brackets, parentheses, and semicolons. It is intentionally lightweight and does not replace a full parser for every modern JavaScript edge case.

Production guidance

Use a project build pipeline for production minification, source maps, syntax validation, transpilation, and tree shaking. This browser tool is useful for quick cleanup, inspection, and size comparisons of snippets.

All processing happens locally. Avoid treating output as validated executable code until it has been tested in the target runtime.