Free Obfuscation Tool
See how our protection transforms make your code harder to read. Upload your code (up to 3MB), choose your transforms and see what JSDefender can do!
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|Domain Lock||Allows binding the code to a specific domain (or its subdomains). When the code running in the browser originates from a non-matching domain, it breaks with an error.|
|Boolean Literals||Transforms the |
|Integer Literals||Transforms integer literals to other (less obvious) expressions that result in the same value when evaluated. It can also transform all integer literals to a specific radix (binary, decimal, hexadecimal, or octal).|
|Property Indirection||Transforms direct property access to indirect property access.|
|String Literals||Extracts string literals into variables and initializes those variables from encoded string literals. Replaces the original string with the corresponding variables.|
|Local Declaration||Mangles the names of local declarations.|
|Debugger Removal||Removes information from production code that can help hackers inspect your code.|
|Control Flow Protection||Obfuscates the program’s control flow by adding opaque predicates or dead code and flattening the control flow.|
|Function Reordering||Moves functions from their original locations to a new one in the same lexical scope. When the *randomize* option is turned on, it sets the new location randomly.|
|Tamper Detection||Wraps critical code with guarding functions, which check at runtime for modifications. Tampered code will not run correctly.|
|Date Lock||Injects code into the protected source, which tests if the current date is in a particular interval. If so, the code runs normally; otherwise, it can either exit or run a custom script.|
|Expression Sequence Obfuscation||Collects adjacent expression statements in the code and joins them into an expression sequence that is harder to understand.|
|Property Sparsing||Transforms object literal expression assignments into multiple assignment statements to make them harder to read.|
|Variable Grouping Protection||Separates variable declarations and initializations; it moves the declaration part to the end of the declaration scope.|