JavaScript Obfuscator

Obfuscate JavaScript code to make it harder to read and reverse-engineer.

Output will appear here

Obfuscate JavaScript

Transform your code to make it harder to read and copy while keeping it functional.

Protection

How this JavaScript Obfuscator works

This obfuscator transforms JavaScript code to make it harder to read while preserving functionality. The tool applies several techniques: variable renaming replaces descriptive names with meaningless identifiers like _0x1a2b, string encoding converts literal strings to hex escape sequences, and optional dead code insertion adds non-functional statements.

Users can enable or disable each obfuscation technique independently. The output is also minified by removing whitespace and condensing the code onto fewer lines. While obfuscation is not true security, it raises the barrier for casual code copying.

All transformation happens client-side in your browser. For production use, consider this a deterrent rather than protection - determined attackers can still reverse-engineer obfuscated code with sufficient effort.

How to Use

1

Paste Code

Enter your JavaScript code.

2

Configure

Select obfuscation options.

3

Obfuscate

Get obfuscated, harder-to-read code.

Example Usage

Obfuscating JS:

Input
var msg = "Hi";
Output
var _0x1a2b="\x48\x69";

Frequently Asked Questions

What is obfuscation?
It transforms code to make it difficult to read while preserving functionality, providing basic protection.
Is obfuscated code secure?
Obfuscation is a deterrent, not security. Determined attackers can still reverse-engineer it.

Related Tools

The JavaScript Obfuscator is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.