JavaScript Beautifier

Make your messy JavaScript readable and clean in seconds.

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Tool Icon JavaScript Beautifier

JavaScript Beautifier

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About This Tool

So you’ve got some JavaScript code that looks like it was written by a caffeinated squirrel. Maybe it’s minified. Maybe it’s just messy. Either way, it’s hard to read—and even harder to debug. That’s where a JavaScript beautifier comes in. This tool takes your ugly, crammed-together code and formats it properly. Indents get fixed. Braces line up. Semicolons stop floating in weird places. It doesn’t change how your code works—it just makes it readable again. Think of it like cleaning up your room after a long night of coding. Same stuff, just organized. I’ve used a few of these over the years. Some are overkill. Some barely work. The good ones? They’re simple, fast, and don’t mess with your logic. This one? It’s in that sweet spot.

Key Features

  • Formats minified code back into something humans can read
  • Customizable indentation—spaces or tabs, your call
  • Preserves your original logic—no rewriting, no surprises
  • Works in the browser—no need to install anything
  • Handles modern JS syntax, including ES6+ features
  • Undo button—because we all make mistakes
  • Lightweight and fast, even on large files
It’s not magic. It won’t fix broken code or optimize performance. But if you’re staring at a wall of text that used to be a function, this’ll help you see the structure again.

FAQ

Will this tool change how my code runs?
Nope. It only reformats the spacing and line breaks. Your variables, functions, and logic stay exactly the same. It’s like retyping your notes neatly—same info, cleaner look.

Can I use this on production code?
Sure, but don’t run it blindly. Always check the output, especially if you’re working with code you didn’t write. Rarely, edge cases in formatting can cause issues—like with inline scripts or template literals. When in doubt, test it in a safe environment first.