Developer tool
JavaScript Formatter and Minifier
Paste JavaScript and select format or minify. Review parser errors before copying.
Runs in your browser. No upload.
Values are processed locally in this browser.
Result
About this tool
JavaScript Formatter and Minifier made simple.
This tool never evaluates the source. The formatter is syntax-aware; minified output can be harder to edit, so keep your original file.
Common questions
About JavaScript Formatter and Minifier.
How do I use JavaScript formatter?
Paste JavaScript and select format or minify. Review parser errors before copying.
Is my data uploaded to a server?
No. This tool runs locally in your browser. Your input is not uploaded.