OllyDbg

OllyDbg is a 32-bit assembler level analysing debugger. Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable.

Free Windows

IDA

The IDA Pro Disassembler and debugger is a multi-processor disassembler and debugger hosted on the Windows, Linux and Mac OS X Platforms.

Free Personal Mac OS X Windows Linux

GNU Project Debugger

GNU Project Debugger, or gdb, is a command-line, source-level debugger for programs that were written in C, C++, D, Objective-C, Fortran, Java, Pascal, assembly, Modula-2, or Ada and compiled for any of a number of different target...

Free Open Source Mac OS X Windows Linux BSD Cygwin

Binary Ninja

A reverse engineering platform and GUI.

Commercial Mac OS X Windows Linux

Hopper

Hopper is a reverse engineering tool for OS X and Linux, that lets you disassemble, and decompile your 32/64bits Intel Mac, Linux, Windows and iOS executables! This tool will let you disassemble any binary you want, and provide you all...

Commercial Mac OS X Linux

Immunity Debugger

Immunity Debugger is a powerful new way to write exploits, analyze malware, and reverse engineer binary files. It builds on a solid user interface with function...

Free Windows

edb (evans debugger)

EDB (Evan's Debugger) is a Qt4 based binary mode debugger with the goal of having usability on par with OllyDbg. It uses a plugin architecture, so adding new...

Free Open Source Linux

Relyze

Relyze is an interactive software reverse engineering and analysis platform with the following main features: * Load PE and ELF binaries - Navigate a binaries...

Commercial Windows

Bokken

Bokken is a GUI for the Pyew and Radare projects so it offers almost all the same features that Pyew has and and some of the Radare's ones. It's intended to be a...

Free Open Source Mac OS X Linux

Boomerang decompiler

A general, open source, retargetable decompiler of machine code programs

Free Open Source Windows

ArkDasm

ArkDasm is a 64-bit interactive disassembler and debugger for Windows. Supported file types: PE64, raw binary files. Supported processor: x64 architecture (Intel x64...

Free Windows

REDasm

REDasm is an interactive, multiarchitecture disassembler written in C++ using Qt5 as UI Framework. Its core is light and it can be extended in order to support new...

Free Open Source Windows Linux

PEBrowseDbg64 Interactive

A very powerful, versatile, and customizable Win32/Win64 user mode debugger/disassembler. PEBrowseDbg64 Interactive is not a source code debugger, but operates at the...

Free Personal Windows