JavaScript Obfuscator

JavaScript is the most popular web development language for adding functionality and interactivity to websites. Writing code in JavaScript is both easy and tough but the code written in JavaScript is very important in the consideration of web development. It is important to write efficient code and protect it from being lost and theft. For the purpose of protecting the code from being stolen by others, the concept of obfuscation is introduced.

Obfuscation

Obfuscation is nothing but the process of changing the format that enables the protection and authentication of our very own intellectual property, asset or code. The obfuscation process also authenticates privacy and imposes restrictions on the private and organization's hidden content. This benefits the organization as the attacks are reduced on the applications and it will make sure the code is not stolen. The attackers also cannot able to reverse engineer the program codes or cannot do any type of malicious activities.

JavaScript Obfuscator

JavaScript obfuscator is a specific JavaScript tool that changes the format and structure of the code to a different format. This tool is found online for free and can be used to protect the code. The format that is generated is very hard to recognize and cannot be easily traced. The main goal of the process of obfuscation is to protect the functionality of the code by just changing the way the code is read.

The main tasks the obfuscator will do on the JavaScript code is

1. Renames all the variables and other tokens
2. Adds codes that have no meaning or are very less readable.
3. Adds unnecessary code and missing statements.
4. Strings are encrypted, and external sources are used for loading.
5. The function calls present in the original code are replaced with other same type of code.

Example: Printing numbers from 1 to n

Let us see an example of the original JavaScript code and how it is changed to an obfuscated code below:

Original Code :

Obfuscated Code :

As we see above, this is how online obfuscators modify the code into unreadable and very hardly traceable code.