Open-source alternatives to Unidbg

radare2 is a reverse engineering framework and binary analysis toolset. It functions as a multi-architecture disassembler, low-level binary debugger, and hexadecimal editor for inspecting executable structures and interpreting machine code when original source files are unavailable. The framework provides capabilities for decompiling machine instructions, performing symbolic analysis, and diffing binary files to identify structural changes across versions. It also includes a digital forensic analyzer and disk analyzer for browsing filesystem formats in userland. The toolset supports binary p

Memory Profiler is a diagnostic library for Ruby applications designed to monitor runtime memory consumption and object lifecycles. It provides tools to track object allocations and memory usage, enabling the identification of performance bottlenecks and potential memory leaks that affect software stability. The tool functions by observing memory behavior during program execution, allowing developers to distinguish between short-lived data and objects that persist beyond their intended lifecycle. It captures the execution context of allocations by walking the call stack, which helps attribute

Heaptrack is a heap memory profiler and diagnostic tool for applications running on Linux. It functions as a memory leak detector and performance analysis system that records heap allocations and stack traces to identify memory hotspots and consumption patterns. The project provides a graphical heap allocation visualizer for exploring memory usage through tree views and peak memory reports. It utilizes flame graphs and allocation charts to visualize memory hotspots and assist in the detection of leaks. The toolset includes capabilities for heap memory allocation tracing and the generation of

Memray is a memory profiler for Python that tracks heap allocations in both Python code and native C or C++ extensions. It captures memory events by hooking into the language runtime and traversing call stacks, providing a comprehensive view of how an application consumes memory. The tool is designed to minimize performance impact on the target application by using thread-local buffering and streaming data to an external process or file. The project distinguishes itself through its ability to monitor complex, multi-threaded systems and child processes in real-time. It provides diagnostic util

HyperDbg is a hardware-assisted kernel-mode debugging platform that leverages virtualization to monitor and control system execution. By utilizing hypervisor-level primitives, it enables deep system analysis and instrumentation without relying on standard operating system debugging interfaces. The framework provides a comprehensive environment for inspecting both kernel and user-mode processes, allowing for granular control over execution flow and system state. The project distinguishes itself through a transparent debugging layer designed to remain invisible to the target environment. It emp

PerfView is a set of integrated profiling and tracing tools built on Windows Event Tracing for Windows (ETW), designed to diagnose CPU, memory, and ETW-based performance issues in .NET applications. It captures ETW events to analyze runtime behavior, CPU usage, and memory allocations, serving as a .NET performance profiler that measures both CPU time and garbage collection events. The tool distinguishes itself with a diff comparison engine that compares two performance traces side-by-side to highlight changes in method costs and event rates. It renders profiled call stacks as flame graphs whe

OSV is a unikernel operating system and cloud-native execution environment designed to run as a secure microVM on hypervisors such as KVM, Firecracker, Xen, and VMware. It functions as a Linux binary compatible runtime, allowing unmodified Linux binaries to be executed as secure microVMs without requiring recompilation. The project distinguishes itself through its ability to package applications into minimal bootable images and its provide of a virtual machine management API. This REST interface enables remote monitoring of system health, management of execution traces, and control over guest

BCC is an eBPF development toolkit and tracing framework used for monitoring and analyzing the Linux kernel. It functions as a performance analysis tool and debugging utility to capture system events, measure kernel latency, and provide network observability. The project distinguishes itself by providing a build system that integrates with LLVM to compile C-like code into BPF bytecode at runtime. It utilizes BPF Type Format data for relocations to maintain cross-kernel compatibility and extracts kernel headers to ensure the generated programs match the specific kernel version. The toolkit co

pwndbg is a GDB plugin and binary analysis framework designed for reverse engineering, exploit development, and low-level program analysis. It extends the core functionality of the debugger to provide advanced memory inspection and automation tools. The project distinguishes itself with specialized capabilities for heap analysis across glibc, jemalloc, and musl, as well as a comprehensive kernel debugging toolkit for inspecting Linux kernel tasks and slab allocators. It includes an integrated ROP gadget searcher for constructing exploit chains and an LLM-powered debugging assistant that provi

The Android NDK samples provide a comprehensive collection of code examples demonstrating how to integrate C and C++ native code into Android applications. This repository serves as a practical guide for developers utilizing the Android Native Development Kit to implement performance-critical application components that require direct hardware access and low-level system interaction. The project highlights the use of the Java Native Interface to bridge managed code with native modules, enabling cross-language function calls and efficient data exchange. It demonstrates how to manage native act

Xposed is a native Android runtime hooking framework and instrumentation tool. It provides a modified version of the Android app process binary to intercept and modify the behavior of system and application processes at the binary level. The framework enables Android operating system customization by altering internal function calls and runtime execution flow. It achieves this through native process instrumentation, allowing for the modification of functionality without altering original application files. The tool covers several low-level capabilities, including native library injection and

Dexposed is a set of runtime tools and engines designed for dynamic patching, framework interception, and code instrumentation on Android devices. It functions as a hooking framework and instrumentation tool used to load custom code into running processes to alter logic without modifying the original bytecode. The project enables the interception and modification of method behavior within both Android applications and the system framework. It specifically provides capabilities for bypassing operating system limitations by overriding framework calls and applying hot patches to live processes w

This project is an Android container runtime that enables the deployment of GPU-accelerated Android instances on Linux hosts across multiple hardware architectures. It provides a cloud-based environment for virtualized Android devices, functioning as a containerized implementation of the Android operating system to support scalable device instances. The system distinguishes itself through a cross-architecture runtime capable of executing ARM-based Android applications on x86 hardware via binary translation layers. It further utilizes host GPU resources to provide high-performance graphics ren

LSPosed is an Android runtime hooking framework and in-memory code modifier. It functions as a system hooking tool that intercepts and modifies system and application methods in memory to change behavior without altering original installation files. The project provides a standardized interface through the Xposed Module API, allowing for the development of plugins that alter the behavior of the Android operating system and installed applications. The framework covers a range of capabilities including runtime function interception, Android system debugging, and application customization. Thes

PINCE is a dynamic debugger, instruction tracer, and memory scanner designed for the analysis and manipulation of running processes. It functions as a process memory manipulator and editor, allowing for the identification, modification, and monitoring of values within a target application's active memory. The tool distinguishes itself through memory pointer analysis, tracing addresses and offsets to locate static pointers that lead to dynamic data across different sessions. It also enables the execution of internal functions within a running process by manipulating the instruction pointer and

A True Instrumentable Binary Emulation Framework

rdpwrap is a set of system utilities and services designed to enable, configure, and manage remote desktop protocol access and video compression settings. It functions as a service and manager that allows remote desktop connections on operating system versions where the feature is restricted or disabled by the vendor. The project provides tools to override system-level restrictions for remote access and activate remote desktop protocol services on unsupported versions. It includes a configuration tool for managing H.264 video compression and encoding settings to balance visual quality, networ

Android Classyshark is a binary analysis toolset designed to extract structural data from Android executable files. It functions as a bytecode viewer and binary XML parser to analyze compiled Java and Android binaries. The project converts binary XML files into readable formats for the inspection of application manifests, layouts, and resource files. It also provides the ability to analyze class interfaces, members, and dependency counts without requiring access to the original source code. The toolset supports static analysis and the export of binary information into plain text formats for

The project is a development kit and compilation toolchain that builds C and C++ source files into native machine code libraries and shared library packages for mobile execution. It integrates target architecture toolchains with standard build systems to transform source code into deployable native modules. The toolset includes debugging and profiling capabilities that bridge low-level system debuggers with compiled binaries to inspect runtime execution states, register contents, and memory layouts. It provides performance monitoring instrumentation to measure execution bottlenecks and resour

Dobby is a dynamic function hooking framework and binary instrumentation tool designed to intercept and redirect function calls in compiled binaries. It serves as a cross-platform and cross-architecture library that provides a unified interface for modifying program execution flow across different operating systems and CPU architectures. The library enables low-level binary instrumentation and runtime application instrumentation by injecting custom handlers into live processes. It is used for software reverse engineering to observe real-time data flow and logic by hooking internal functions.

capa is a static analysis tool that scans executable files to identify what a program can do, detecting capabilities such as API calls, byte sequences, and structural patterns without executing the code. It supports multiple file formats including PE, ELF, .NET, and shellcode, and can also process runtime behavior traces from sandbox reports generated by CAPE, DRAKVUF, or VMRay. The tool integrates directly with reverse engineering environments through plugins for IDA Pro and Ghidra, allowing analysts to view capability matches and author detection rules within their disassembler of choice. C

dnSpy is a specialized toolset for the reverse engineering, analysis, and modification of compiled .NET binaries. It functions as a decompiler that converts assemblies back into readable high-level source code, an assembly editor for modifying bytecode and metadata, and a debugger for inspecting compiled binaries. The project integrates a hex editor specifically for inspecting and modifying raw bytes and Common Intermediate Language structures. It allows for the direct modification of binary contents to change application behavior without requiring the original project source files. The tool

MAME is a vintage hardware emulation platform designed to recreate the circuitry of arcade games, computers, and consoles to run original software on modern devices. It functions as a retro gaming preservation framework for managing, verifying, and archiving ROM sets and disk images to ensure long-term software accessibility. The project features a system debugging tool for inspecting emulated memory, CPU registers, and execution flow via breakpoints and disassembly. It also includes a Lua-based automation layer that exposes core system state and hardware controls for custom behavior and anal

VirtualApp is an Android application virtualization engine and user-space sandbox that enables the execution of applications within an isolated environment. It allows for the running of multiple independent instances of the same application on a single device and supports private application installation without requiring system-level root access. The project features a comprehensive hooking framework for intercepting Java and native layer functions to modify application behavior. It includes tools for hardware simulation to spoof device models and system information, as well as a non-root pr

Piko is a collection of specialized Android utilities designed for binary patching, user interface customization, media downloading, and application debugging. It functions as an APK modification framework that alters application metadata and binary resources to modify internal logic and bypass version locks. The project differentiates itself through deep application modification capabilities, including bytecode-level instruction patching, DEX file manipulation, and a dynamic hooking engine. It enables the overriding of resource files and the injection of permissions via the application manif

REFramework is a runtime modding framework for games built on the RE Engine, providing a C# plugin system with typed proxy code generation, a Lua scripting interface, an ImGui-based UI system, a runtime debugging toolkit, and a VR integration layer. At its core, it intercepts and modifies internal game engine functions and state at runtime through hooking and scripting APIs, enabling deep inspection and manipulation of live game objects. The framework distinguishes itself through typed proxy code generation that auto-creates C# interfaces from the game's type database, giving compile-time saf

r0capture is a tool for intercepting network traffic from Android applications. It serves as a traffic interceptor, packet sniffer, and client certificate exporter used to analyze application-layer communication on Android devices. The project provides mechanisms to bypass SSL pinning and certificate validation, allowing the decryption of encrypted traffic without modifying device trust stores. It also enables the extraction of client-side certificates from application memory for saving to local device storage. Captured network data is serialized into PCAP files to support offline protocol a