JavaScript Beautifier & Minifier

Format readable JavaScript for debugging or minify scripts for smaller production payloads. Processing happens locally in your browser.

Paste JavaScript or upload a .js file, choose Beautify or Minify, adjust formatting options, then copy or download the result.

Useful for reading minified bundles, normalizing quote and semicolon style, reviewing pasted snippets, and shrinking small scripts before embedding.

This lightweight formatter is not a transpiler or full parser. Very large files may slow the browser, and string literals with bracket characters can still produce validation warnings.