JavaScript Beautifier

About This Tool

So you’ve got some JavaScript code that looks like it was written by a caffeinated squirrel on a keyboard. Maybe it’s minified. Maybe it’s just someone’s messy experiment. Either way, it’s hard to read. That’s where a JavaScript beautifier comes in. This isn’t some magic wand. It’s a simple tool that takes your jumbled, compressed, or poorly formatted JS and makes it readable again. Think of it like cleaning up a messy room—except the room is your code, and the vacuum is a parser that actually knows what semicolons are for. I’ve used a few of these over the years. Some are okay. Some are overkill. The good ones? They just work. No fuss. You paste, you click, you get clean code back. That’s the goal here.

Key Features

• Readable formatting – Adds proper indentation, line breaks, and spacing so you can actually follow the logic.
• Preserves functionality – Doesn’t change how your code runs. Just makes it look better.
• Handles minified code – Takes that one-line monster and turns it into something you can debug without crying.
• Supports modern JS – Works with ES6+, arrow functions, template literals, and all that shiny new stuff.
• No installation needed – Most beautifiers run in the browser. Just open the page and go.
• Customizable options – Some let you tweak spacing, brace style, or line length. Handy if you’re picky.
• Fast and lightweight – Doesn’t slow down your machine or ask for your firstborn.

FAQ

Will this fix my broken code?
Nope. It only cleans up formatting. If your code has syntax errors or logic bugs, you’re still on your own. Think of it as a stylist, not a mechanic.

Is it safe to use on sensitive code?
If you're pasting code into a random website, maybe not. Use tools that run locally or open-source ones you can inspect. Never paste proprietary or sensitive logic into something you don’t trust.