JS Obfuscator

Protect your JavaScript source code by making it difficult for humans to read and reverse-engineer.

The JS Obfuscator transforms your readable JavaScript into a cryptic, difficult-to-understand version. This is a layer of defense to protect proprietary logic and prevent easy copying of your client-side code. Obfuscate your JS code now!

Enter your JS Code Here

Large file

Obfuscation Strength

Custom Options

Compact Output Control Flow Flattening Dead Code Injection Numbers to Expressions String Array Shuffle Split Strings

Original Size

Obfuscated Size

Size Increase

Protection

Obfuscation Complete! Your JavaScript has been obfuscated with protection level. Size increased by .

Obfuscated JavaScript

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How to Use

Step-by-step guide 3 steps

1 Enter JavaScript: Paste the JavaScript source code you wish to protect.
2 Obfuscate: Click "Obfuscate JS".
3 Copy Protected Code: The output is functionally identical to the original script but is highly scrambled and unreadable, making it extremely difficult for humans to reverse-engineer.

FAQ

Common questions 3 questions

What is code obfuscation used for?

Obfuscation is a defensive layer that makes reverse-engineering difficult, protecting proprietary algorithms, source code logic, and intellectual property in client-side applications.

Is obfuscated code smaller in size?

Not necessarily. While some obfuscation methods include minification, the primary goal of obfuscation is code security (unreadability), not file size reduction (performance).

Does obfuscation affect performance?

Yes, highly obfuscated code often runs slightly slower than minified code because the browser's engine has to process more complex, cryptic variable names and logic.

Use Cases & Examples

Real-world applications 3 examples

Intellectual Property

Example Keyword: obfuscate javascript for security
Protect proprietary algorithms and business logic in client-side JavaScript from being easily copied.

Preventing Scraping

Example Keyword: protect source code logic
Make it harder for competitors to understand the underlying functionality of your web application features.

API Key Concealment

Example Keyword: scramble js code online
Add an extra layer of difficulty to finding embedded tokens or API keys (though keys should never rely on client-side security).