JavaScript Beautifier

Make unreadable JavaScript understandable. Apply standard indentation and line breaks to quickly debug confusing code blocks.

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How to use this tool

  1. 1Input ScriptPaste the minified JavaScript code.
  2. 2Format CodeClick beautify to properly indent functions and loops.
  3. 3DebugRead and debug the newly formatted code structure.

What this tool is useful for

  • ✓Reverse-engineering a compiled web widget.
  • ✓Debugging an error thrown by a minified third-party library.
  • ✓Formatting inline scripts copied from old HTML files.

Privacy & processing

All processing is executed locally using your browser. Your data is never sent to a server.

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