About the JavaScript Formatter
Reformat minified or messy JavaScript so it’s readable — useful for debugging and reviewing snippets.
JavaScript Formatter
Beautify JavaScript and JSON-like code with readable indentation.
- Paste your input
- Choose the options
- Copy the output
Runs in your browser. Your data and files never leave your device.
Frequently asked questions
Can it un-minify production JavaScript?
It restores indentation and line breaks, which makes code readable. Variable names shortened by a minifier can’t be recovered — for that you need the original source or a source map.
Is my code sent anywhere?
No. Formatting runs in your browser.
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