JS Formatter

Free online JS Formatter. Beautify JavaScript script blocks with clean indentations and structured line breaks.

⚡ Interactive Calculation Engine Active

Please enable JavaScript in your browser to run live computations, 2D envelope diagrams, and export PDF reports.

How to Use JS Formatter

Paste messy or minified JS scripts.
Select indent spaces size (2 or 4).
Copy the beautifully formatted JS output.

JavaScript Formatting Standards

Clean formatting is essential for debugging and code audits. It organizes block statements, variable declarations, and returns cleanly.

Frequently Asked Questions

Can this formatter decode obfuscated code?: It formats layout spacing and indentation, making minified code readable, but it cannot restore original variable names if they were obfuscated.