What is a JavaScript Formatter?

A JavaScript Formatter is a free online tool that beautifies and formats your JavaScript code with consistent indentation, proper spacing, and clean structure. It handles minified production code, compressed library files, and messily written scripts — transforming them into readable, well-structured code that follows standard formatting conventions.

Why format your JavaScript?

In professional development, code readability is as important as functionality. Consistently formatted JavaScript is easier to debug, review, and maintain. It helps teams collaborate without style conflicts, makes code reviews more productive, and reduces the cognitive load of reading complex logic. Whether you are debugging a minified library or cleaning up legacy code, proper formatting is the first step.

How to use the JavaScript Formatter?

Paste your JavaScript or TypeScript code into the input area. The formatter instantly beautifies it with smart indentation, consistent bracket placement, proper spacing around operators, and clean line breaks. You can customize indentation (2 or 4 spaces), choose single or double quotes, and toggle semicolons. Copy the formatted output or download it as a file.