JS Formatter and Minifier
Format and minify your JavaScript code with our online tool. Paste your JS or upload a file to quickly beautify or compress it.
What is JavaScript
JavaScript (JS) is a dynamic language that powers interactivity on web applications. Originally created for client-side scripting, it became much more powerful. Now it's used in backend, mobile apps and much more.
JS enables dynamic content updates, form validation, animations, user interactions, and real-time data processing without page reloads. It supports object-oriented, functional, and event-driven programming paradigms.
Also, it's the only programming language natively supported by web browsers. It works seamlessly with HTML and CSS to build complete web applications.
Why Minify or Format JavaScript
JavaScript formatting and minification serve different but important purposes in web development. Formatting creates readable, well-structured code with proper indentation, spacing, and line breaks.
Minification removes all unnecessary characters — whitespace, comments, line breaks... This improves website loading speed and bandwidth usage.
So, you can use our free JavaScript formatter to make your messy code cleaner and easy to read.