About JavaScript Formatter
Beautify (pretty-print) JavaScript with consistent indentation, or minify by removing comments and extra whitespace. All processing runs in your browser.
Frequently Asked Questions
Is my code sent to a server?
No. Formatting and minification run entirely in your browser.
Does minify change my code behavior?
The minifier removes comments and unnecessary whitespace. It does not rename variables or alter logic. For full minification (e.g. mangling), use a build tool like Terser.
Can I format invalid JavaScript?
The beautifier works best with valid syntax. Invalid code may not format correctly or could cause errors.