Can I beautify JavaScript with ES6+ syntax?

Yes, the beautifier handles all modern JavaScript including arrow functions, async/await, template literals, destructuring, classes, optional chaining, and nullish coalescing. ES6+ syntax is properly formatted and indented.

What brace style options are available?

You can choose between collapse (opening brace on the same line), expand (opening brace on a new line), and end-expand (opening brace on a new line for control structures). This matches common ESLint and Prettier configurations.

Does the beautifier change how my JavaScript works?

No, the beautifier only changes formatting — whitespace, line breaks, and indentation. The logic, variables, and runtime behavior remain identical. The executed code produces the same results.

Can I beautify JavaScript from a bundled file?

Yes, you can paste the contents of a minified bundle and the beautifier will reformat it with proper indentation. While variable names remain minified, the structure and logic become much easier to follow.

How is this different from a JS minifier?

A JS minifier removes whitespace and comments to reduce file size. A JS beautifier does the opposite — it adds whitespace and formatting to make code readable. Use the beautifier for development and debugging, and the minifier for production deployment.

Loading tool...

JS Beautifier

A JavaScript beautifier reformats minified or poorly structured JS code with proper indentation, line breaks, and brace positioning. It supports ES6+ syntax, customizable indentation, and multiple brace styles. The output is functionally identical to the input.

100% FreeNo Signup RequiredBrowser-BasedPrivate & Secure

What is JS Beautifier?

A JavaScript beautifier is a tool that reformats compressed or poorly structured JavaScript code into clean, readable script with consistent indentation, proper line breaks, and organized statement structure — without changing how the code executes.

Complementary Tools

These tools work great alongside JS Beautifier:

CSS Minifier CSS Gradient Generator

Start Using JS Beautifier Today

Readable JavaScript is non-negotiable for effective debugging and team collaboration. This beautifier instantly transforms minified bundles and messy scripts into clean, well-structured code that matches your project's formatting conventions. Use it alongside the JS minifier for a seamless development-to-production formatting pipeline.

Use JS Beautifier Free

Table of Contents