JavaScript Tools

JavaScript De-obfuscator

JavaScript De-obfuscator — detect common wrappers, decode, and beautify JavaScript. It works entirely in your browser, with nothing uploaded to any server.

Client-sideRuns entirely in your browser — your data never leaves your device.

JavaScript De-obfuscator is a free JavaScript Tools utility that runs entirely in your browser — nothing you enter is uploaded.

Obfuscated JavaScript
Unpacked & beautified



  
How to use JavaScript De-obfuscator

  
    
      
  1. Drop your text into the field at the top of JavaScript De-obfuscator.
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  2. Watch the output update instantly while you adjust the text.
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  3. Use Copy to keep or reuse the result.
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About this tool

  
JavaScript De-obfuscator is a static, client-side tool with no backend. JavaScript De-obfuscator is a free JavaScript Tools utility that runs in your browser, doing its work on the input you provide without a backend.

  
Because it runs on your device, it is fast and private and works offline once loaded. No data is sent anywhere, so it stays fast and private by default.

  
Frequently asked questions

  

      
How do I use JavaScript De-obfuscator?
JavaScript De-obfuscator lets you process your input right in the browser, with the result shown instantly and nothing uploaded.

      
Does JavaScript De-obfuscator cost anything?
No — JavaScript De-obfuscator is completely free, with no sign-up and no hidden limits.

      
Does JavaScript De-obfuscator upload my data?
No — JavaScript De-obfuscator processes everything locally in your browser, so nothing you enter is uploaded or stored.

      
Does JavaScript De-obfuscator work on mobile?
Yes — JavaScript De-obfuscator is just a web page and runs on any modern browser, including phones and tablets.

  

  
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