JS Beautifier

About this tool

What is the JavaScript Formatter? JavaScript Formatter A formatting tool that reformats minified or obfuscated JavaScript code into a readable version with clear indentation and logical line breaks. It makes it easier to understand the code, debug, and maintain it. Key Features Instantly format JavaScript code with proper indentation Expands minified JS into a readable structure Correctly handles functions, loops, and conditions Preserves JavaScript comments Customize indentation level How does it work? Paste your JavaScript code, and the tool will analyze the structure and reformat it with proper indentation for each code block. Practical example: You have a JavaScript file that Webpack has minified into a single block containing 50 functions and 30 loops. Paste it into the JS editor and you’ll get 3,000 lines of organized code with clear indentation that reveals the structure of each function, its variables, and nested conditions. Common Use Cases Debugging JavaScript: Read the minified code to understand the execution flow and detect errors Code Refinement: Make the code easier to review and discuss with the development team Framework Library Analysis: Understand how the source code of an external library works Frequently Asked Questions What does a JavaScript minifier do? It reformats JavaScript by adding leading spaces and line breaks between functions, loops, and statemen