You can either browse a JavaScript file locally from your device, fetch a JavaScript file from a URL, or enter JavaScript code manually. JavaScript Formatter - Beautifies messed up JavaScript code by formatting it to be human-friendly and more readable with your preferred indentation level; e.g. space or tab. Useful for development purposes.
Javascript is a web based programming language that is used extensively in many websites. Often the javascript used is provided has white space compressed to reduce the size of the data transferred. This site give you a quick and easy way to format (beautifier) the javascript so you can easily read it.
When you're done, you can either copy the result to your clipboard using the copy button or download it as a JavaScript file to your device using the download button.