JavaScript Obfuscator
Protect your JavaScript code by transforming it into an unreadable but functionally identical format.
Original JavaScript
Obfuscated Output
Why Obfuscate JavaScript?
This free javascript obfuscator runs entirely in your browser; your data is never sent to any server. Obfuscation transforms your readable code into a complex, chaotic format that is incredibly difficult for humans to understand or reverse-engineer, while still functioning exactly the same for the browser.
Frequently Asked Questions
Will obfuscation affect my script's performance?
Yes, heavy obfuscation (like Dead Code Injection and Control Flow Flattening) can slow down the execution speed of your script by up to 30%. It is recommended to use the "Medium" preset for most applications.
Is this tool secure?
Absolutely. The obfuscation engine runs entirely in your browser using the open-source javascript-obfuscator library. Your proprietary code is never sent to a server.