JavaScript Formatter
Make compact JavaScript easier to read with simple indentation and line breaks.
How to Use the JavaScript Formatter
Paste JavaScript code into the editor and run the formatter to add consistent indentation, spacing and line breaks. This makes minified or compact scripts easier to read during debugging, code review and maintenance.
Practical Example
A one-line function such as function add(a,b){return a+b;} can be expanded into a neatly indented multi-line block without changing what the code does.
Factors That Affect the Result
Modern syntax, embedded templates, comments, unusual formatting and incomplete code can influence the output. A formatter improves readability but does not guarantee that invalid JavaScript becomes valid.
Frequently Asked Questions
Does formatting change JavaScript behavior?
No, formatting is intended to change presentation rather than program logic.
Can minified code be formatted?
Yes, valid minified JavaScript can usually be expanded into a more readable form.
Does the tool validate JavaScript?
Formatting and syntax validation are different tasks, although invalid code may prevent reliable formatting.