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JavaScript Obfuscator Tool

Protect your JavaScript code by obfuscating it into a secure, unreadable form while keeping full functionality for websites and apps.
Aaqib Amin

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JavaScript Code Obfuscator – Documentation

JavaScript Obfuscator Tool

Overview

The JavaScript Code Obfuscator Tool allows developers to protect and secure their JavaScript code by converting it into an unreadable yet fully functional format. Obfuscation helps prevent code theft, reverse engineering, and unauthorized modifications while keeping applications running smoothly.

Key Features

  • Code Protection – Convert readable JavaScript into obfuscated code.
  • Multiple Presets – Choose between low, medium, and high levels of obfuscation.
  • Advanced Options – Transformations like control flow flattening, dead code injection, string arrays, and more.
  • Security Options – Protect against debugging, disable console output, and enable self-defending features.
  • Identifier Renaming – Obfuscate variable and function names for stronger protection.
  • One-Click Copy & Download – Quickly copy or download obfuscated code.
  • File Upload Support – Upload .js files directly for obfuscation.

How to Use

Step 1: Input Code

Paste your JavaScript code directly into the input box or click Upload to import a .js file.

Step 2: Select Options

Click Show Options to expand advanced settings. Choose a preset or customize transformations and protections.

Step 3: Obfuscate Code

Click the Obfuscate button. The obfuscated code will appear in the Output section.

Step 4: Export Code

Use Copy to copy the code or Download to save the obfuscated code as a .js file.

Options Explained

Presets

  • Default – Balanced settings.
  • Low Obfuscation – Lightweight, minimal transformations.
  • Medium Obfuscation – Stronger transformations for general use.
  • High Obfuscation – Maximum security with advanced transformations.

Transformation Options

  • Control Flow Flattening – Makes reverse engineering harder.
  • Dead Code Injection – Adds unused code to confuse attackers.
  • String Array – Stores strings in arrays for better protection.
  • Numbers to Expressions – Replaces numbers with mathematical expressions.
  • Simplify – Reduces unnecessary code while keeping it secure.

Protection Options

  • Debug Protection – Prevents debugging tools from analyzing the code.
  • Disable Console Output – Stops logging in the developer console.
  • Self Defending – Protects obfuscated code from being altered.

Identifier Options

  • Dictionary – Uses predefined names.
  • Hexadecimal – Converts names into hex format.
  • Mangled – Shortens names to confusing identifiers.
  • Mangled Shuffled – Randomizes mangled identifiers.
  • Rename Globals/Properties – Renames global variables and object properties.

Why Use This Tool?

- Prevents source code theft
- Makes reverse engineering extremely difficult
- Protects intellectual property in web apps, plugins, and scripts

Important Notes

  • Always keep a backup of your original source code before obfuscation.
  • Overuse of heavy options may increase file size and reduce performance.
  • Test the obfuscated code thoroughly before deploying.

JavaScript Obfuscator Tool FAQ

What is the JavaScript Obfuscator Tool?

It is an online tool that converts your JavaScript code into an unreadable format to protect it from unauthorized copying or tampering while keeping it functional.

How do I use the tool?

Paste your JavaScript code into the input box or upload a .js file, choose the desired obfuscation options, click "Obfuscate," and then copy or download the obfuscated code.

What are the obfuscation levels available?

The tool offers Low, Medium, and High obfuscation levels, allowing you to balance between security and performance of your code.

What advanced features does it offer?

It supports features like control flow flattening, dead code injection, string array encoding, number-to-expression conversion, identifier renaming, debug protection, and self-defending code.

Do I need to backup my original code?

Yes, always keep a copy of your original source code before obfuscation, because the obfuscated code is difficult to read and edit.

Final Thought

The JavaScript Code Obfuscator is designed to provide developers with an extra layer of security for their projects. While no method guarantees 100% protection, this tool makes your code significantly harder to copy, modify, or reverse engineer, ensuring better safety for your applications and intellectual property.

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