Version 2.3 introduced native code decompilers. Users can 'seamlessly debug Dalvik bytecode and native machine code, for all apps including those that do not explicitly allow debugging'. Version 2.2 introduced Android debugging modules for Dalvik and native (Intel, ARM, MIPS) code.

Users can also write their own scripts and plugins to extend JEB functionality. The assembly and source outputs are interactive and can be refactored.

It decompiles Dalvik bytecode to Java source code, and x86, ARM, MIPS, RISC-V machine code to C source code. JEB is a disassembler and decompiler software for Android applications and native machine code.