A JavaScript Obfuscator is a tool that scrambles the source code of a JavaScript file, making it difficult to read and understand. This can be useful for protecting intellectual property or preventing unauthorized modifications.
However, it's important to note that obfuscation is not a foolproof security measure. Determined attackers can still analyze obfuscated code, especially with advanced tools and techniques. It's best to combine obfuscation with other security measures, such as code signing and secure server configurations.