JavaScript formatter
Format or minify JavaScript source locally without executing it.
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Formats or minifies source without executing it. Minify removes formatting and, unless preserved, comments; it does not run compression transforms or rename identifiers. Equivalent behavior is not guaranteed.
Your input and results are processed only in this browser. They are not uploaded to or stored on a server.
How to use JavaScript formatter
Choose Format for readable source or Minify to remove optional whitespace and comments without compression transforms or identifier mangling. Review transformed code before deployment.
Private, local processing
Your input and results are not uploaded or stored. They remain in this browser tab.
Frequently asked questions
What does JavaScript formatter do?
Format or minify JavaScript source locally without executing it.
Is my data uploaded?
Your input and results are not uploaded or stored. They remain in this browser tab.
What should I check when using JavaScript formatter?
Choose Format for readable source or Minify to remove optional whitespace and comments without compression transforms or identifier mangling. Review transformed code before deployment.