Open-source alternatives to Class Dump

Enjarify is a tool for translating Dalvik bytecode to equivalent Java bytecode. This allows Java analysis tools to analyze Android applications.

Apktool is an Android APK reverse engineering tool designed to decode application packages into human-readable form and rebuild them after modification. It functions as a Dalvik bytecode disassembler and a resource decoder, transforming binary Android XML and DEX files into editable text and Smali representation. The project serves as an application rebuilder, packing modified resources and Smali code back into a functional Android application package. This capability enables the modification of application logic and resources for testing and deployment. The tool covers a broad surface of an

Frida is a dynamic binary instrumentation toolkit that provides a framework for deep process introspection and live application state manipulation. It enables the injection of custom scripts into running processes to trace function calls, modify memory, and analyze application behavior in real-time across diverse operating systems and processor architectures. The project distinguishes itself by embedding a high-performance JavaScript engine directly within the target process, allowing for the execution of user-defined logic for real-time inspection. It utilizes instruction-level hooking to re

dex2jar is an Android dex decompiler and reverse engineering tool designed to convert Dalvik executable bytecode into Java class files. It functions as a bytecode converter that transforms compiled Android binaries into a format compatible with standard Java analysis tools. The project facilitates Android app decompilation and Java bytecode recovery by translating executable files into readable structures. This allows for the analysis of application logic and the identification of security vulnerabilities or malicious behavior during Android malware analysis. The tool performs static bytecod

JPEX Software is a comprehensive reverse engineering suite for SWF binary files, serving as an ActionScript decompiler and editor. It provides a toolkit for decompiling, analyzing, and modifying the internal structure of compiled Flash content, including the extraction of scripts and media assets. The project is distinguished by its ability to perform direct binary modification, allowing users to edit bytecode and replace embedded resources without reverting to high-level source code. It includes a runtime ActionScript bytecode debugger for variable inspection and call stack analysis, as well

🔥🔥 btrace (AKA RheaTrace) is a high-performance Android & iOS tracing tool built on Perfetto. It not only times your methods but also reveals why they’re slow.

A pattern based Dalvik deobfuscator which uses limited execution to improve semantic analysis. Also, the inspiration for another Android deobfuscator: Simplify.

WIP Crappy iOS app analyzer

This project is a comprehensive Android reverse engineering suite that functions as a decompiler, bytecode deobfuscator, and malware analysis tool. It is designed to convert APK, DEX, and OAT binaries into human-readable source code using a native implementation that does not require a Java Virtual Machine. The platform is distinguished by its integration with Frida for dynamic analysis, allowing users to hook methods, inject custom JavaScript, and dump device memory in real time. It also features specialized security engines, including a taint propagation engine and a stack-state machine, to

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.

idb is a tool to simplify some common tasks for iOS pentesting and research. Originally there was a command line version of the tool, but it is no longer under development so you should get the GUI version.

Documentation:

Apkleaks is a static analysis tool and security auditor designed to extract hardcoded secrets, API endpoints, and sensitive data from Android application packages. It operates as a secret scanner that analyzes compiled binaries without executing them to identify potential information leaks and insecure endpoints. The tool utilizes a regex-based data extraction engine to identify sensitive strings within decompiled code. It supports customization through JSON-defined search patterns and provides configuration flags to tune the behavior of the underlying disassembler. The analysis pipeline enc

A security focused static analysis tool for Android and Java applications.

CLI tools for Frida.

Drozer is a security testing framework and runtime analyzer for Android applications and devices. It functions as an exploit management framework and a security toolset used to identify vulnerabilities, misconfigurations, and leaks within the Android operating system and its installed applications. The framework enables the simulation of application behavior and the interaction with communication endpoints to detect security flaws. It manages the execution, analysis, and sharing of public exploits for mobile security research. The system provides capabilities for application auditing, vulner

Needle is an open source, modular framework to streamline the process of conducting security assessments of iOS apps.

#AMExtractor = Android Memory Extractor#

This project is a desktop application designed for the reverse engineering and inspection of compiled Java code. It functions as a graphical interface that translates Java bytecode back into readable source code, allowing users to examine the internal logic of class files and archives when original source files are unavailable. The tool provides a structured environment for navigating complex file hierarchies, including nested archives like JAR and WAR files. By maintaining an in-memory representation of loaded classes, it enables rapid searching and cross-referencing of code elements. The ap

ROPgadget is a binary analysis tool and multi-architecture disassembler designed to locate instructional sequences used for return-oriented programming. It functions as an exploit development framework that identifies gadgets within binaries to facilitate the creation of memory corruption exploits. The tool supports cross-architecture binary auditing, processing machine code from x86, ARM, MIPS, and RISC-V. It provides a unified interface for analyzing diverse executable file formats, including ELF, PE, and Mach-O. Its capabilities cover binary vulnerability analysis and exploit payload deve

A collection of OSX and iOS security resources

This project is a Java bytecode reverse engineering suite that functions as a disassembler, decompiler, and editor for Java class files and Android APK binaries. It provides tools to transform compiled bytecode into assembly instructions or readable source code. The toolset supports Android APK analysis and Java binary patching, allowing for the modification of source code or bytecode and subsequent recompilation into functional binaries. It includes capabilities for removing Java obfuscation and performing malware analysis through the detection of malicious code patterns. The system incorpo