Software Copy Protection & License Key System: obfuscate

Showing posts with label obfuscate. Show all posts

Wednesday, May 13, 2026

JObfuscator - Java Source Code Obfuscator

JObfuscator is a Java source code obfuscator. Obfuscate your Java source code & algorithms to protect it against reverse engineering analysis, LLMs, cracking and decompilation.

JObfuscator has been updated with major changes

Online interface - https://www.pelock.com/jobfuscator/
Desktop & CLI - https://www.pelock.com/products/jobfuscator/download
SDK packages - https://www.pelock.com/products/jobfuscator/api

Desktop app window

Engine history

v1.30 - 14.05.2026

A new obfuscation strategy. Encrypt all double values using floating point math functions from the java.lang.Math.* class.
A new obfuscation strategy. Rebuild string literals as runtime-created String objects from hidden char arrays.
A new obfuscation strategy. Represent selected integer values through equivalent double math expressions.
A new obfuscation strategy. Inject opaque mixer chains and unreachable guards to increase the amount of code decompilers have to analyze.
A new obfuscation strategy. Replace plain true and false literals with equivalent runtime expressions.
A new obfuscation strategy. Wrap selected safe statements in noisy try/finally blocks while preserving program behavior.
A new obfuscation strategy. Encrypt int array contents and decode them at runtime.
A new obfuscation strategy. Encrypt double arrays by hiding their values as encoded bit patterns.
A new obfuscation strategy. Encrypt char arrays and restore the original characters through generated decoder code.
A new obfuscation strategy. Encrypt String array elements and rebuild them while the program runs.
A new obfuscation strategy. Split eligible string literals into nested .concat(...) chains so decompilers face more tokens and local data-flow steps; it runs before polymorphic string encryption when both are enabled.
Updated the StringEncrypt engine with support for nested polymorphic loops in string encryption.
Updated the engine parser configuration to support Java 21 source code constructs.

Client history

v1.3 - 14.05.2026

Windows and Linux clients updated with all the new obfuscation strategies
Windows client runs the obfuscation process in background now
Drag & drop support added for faster Java file opening
Command line version supports wildcards now and can process many files at once
All the SDK packages updated

Saturday, July 31, 2021

Best Java Obfuscator?

Our Java Obfuscator - JObfuscator has been updated to include new Java obfuscation strategies.

Obfuscation engine history

v1.03 - 31.07.2021

Some integers were not extracted correctly for the integers to arrays obfuscation strategy
Multilevel obfuscation of extracted integers into the arrays (into a random number of double and integer arrays)

v1.02 - 30.07.2021

An integers to arrays obfuscation strategy, converts the integer values into double values to avoid deobfuscation by popular Java decompilers e.g. double[] var_2597 = new double[]{13.898355719807563D, 65535.73657403742D, ... };

v1.01 - 28.07.2021

A new obfuscation strategy. For each method, extract all possible integers from the code and store them in an array. It makes the analysis harder because it requires an indexed table lookup for every numeric value.