Free Online Eval Obfuscator – Encode JavaScript with Base64, CharCode, Hex & More...

Eval Encode Tool

Enter your text: Select Encoding Type: Base64 → eval(decodeURIComponent(atob())) CharCode → eval(String.fromCharCode()) Unescape Hex → eval(unescape()) Array Join → eval([..].join('')) Function Constructor → new Function() Numeric Math → eval(String.fromCharCode(num+offset))

Encoded Output:

Eval Encode Tool – Obfuscate Your JavaScript Code

The Eval Encode Tool helps developers quickly transform JavaScript into different encoded formats such as Base64, CharCode, Unescape Hex, Array Join, Function Constructor, and Numeric Math encoding. This is useful for adding an extra layer of obfuscation or hiding source code before distribution.

🔑 Key Features

• Supports multiple encoding methods for flexibility.
• One-click copy to clipboard function.
• Instant success/error messages (no annoying popups).
• Dark and light theme support with .drK CSS class.
• Fast, browser-based encoding – no server required.

📖 How to Use

1. Enter your JavaScript code in the input box.
2. Select an encoding type from the dropdown menu.
3. Click Encode to generate the encoded output.
4. Use the Copy button to copy the result.
5. Click Reset to clear the form and start again.

💡 Example

// Input:
alert("Hello World");

// Encoded with CharCode:
eval(String.fromCharCode(97,108,101,114,116,40,34,72,101,108,108,111,32,87,111,114,108,100,34,41,59));

⚠️ Disclaimer

This tool is intended for educational and testing purposes only. Do not use it for malicious activities. Always keep in mind that encoding is not the same as encryption; skilled developers can decode obfuscated scripts.