Will it change my code's logic?

No — only whitespace and indentation are changed; the code's behavior stays identical.

Does it support TypeScript or JSX?

This formatter targets plain JavaScript; TypeScript-specific or JSX syntax may not format perfectly.

Can I use it to minify code instead?

No, this expands and indents JavaScript. Use a dedicated minifier/bundler if you need a compressed file.

JavaScript Formatter

Format and indent messy or minified JavaScript. Paste your code and get clean, readable output instantly, entirely in your browser.

How to Use JavaScript Formatter

1
Paste your JavaScript code into the input area.
2
Click Format to indent and clean it up.
3
Copy the result or download it as a .js file.

JavaScript Formatter Features

Consistently indents blocks, functions and expressions.
Works on minified or inconsistently formatted code.
Runs entirely in your browser.

Why use Tool King?

Fast

No waiting rooms or sign-ups. Most files are ready in seconds.

Private

Files are processed in memory and discarded right after — never stored or shared.

Free

Every tool is free to use, with no hidden limits on the essentials.

Frequently Asked Questions

Related guides

A quick guide to formatting and validating JSON

Turn minified or messy JSON into something readable — and catch syntax errors fast.

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