IconVault's JS Beautifier turns minified or messy JavaScript into clean, readable code: proper indentation (2 spaces, 4 spaces or tabs), consistent spacing around operators and keywords, and each statement on its own line. Strings, comments and regex literals are protected by a real tokenizer, so quoted content is never damaged during formatting.

Choose to keep, force single quotes or double quotes (template literals are never touched), preview live stats like byte size and line count, then copy or download the result. Flip to minify mode to strip comments and collapse whitespace for production. Free and runs fully in your browser.