JavaScript Beautifier
Clean up messy, minified, or compressed JavaScript files. Format braces, indent loops, and space out operators for clean code.
Raw JavaScript
Beautifier Settings
💡 Code Syntax
Our formatter parses loops (for, while), conditions (if, switch), and assignment blocks correctly, ensuring brackets and semicolons are structured cleanly.
Beautiful Output JavaScript
What is JavaScript beautification and why does it matter?
JavaScript files are often compressed, aggregated, or minified to speed up internet transmission. However, reading compressed files when resolving bugs, inspecting other web apps, or tracking third-party scripts is practically impossible. A JavaScript beautifier decompresses your scripts, re-introducing indents, spacing out operators, and wrapping blocks in clear brackets. This structural formatting turns a dense, unreadable block of scripts back into normal, human-readable logic.
How our JS formatter improves code readability
Our tool parses keywords like if, for, and while, placing brackets on new lines and shifting inner code blocks by a designated indentation size. We also space out binary operators (like ===, &&, ||, =, and arrow functions =>) so you can easily scan the logic of conditional statements. Unary values (like negative numbers or prefix increments) are kept grouped so the parser doesn't alter the logical meaning of your equations.
Secure client-side compiler in your browser
We know security is critical when handling sensitive code files, API handlers, or database scripts. This JavaScript beautifier handles all calculations locally on your computer inside your web browser. Nothing is ever sent to outer databases or external web servers. The parser runs locally, keeping your proprietary formulas, token structures, and configuration files completely private.