OllyDbg - OllyDbg is a 32-bit assembler level analysing debugger.
IDA - The best-of-breed binary code analysis tool, an indispensable item in the toolbox of world-class software analysts, reverse engineers, malware analyst and cybersecurity professionals.
WinDbg - WinDbg is a multipurposed debugger for Microsoft Windows, distributed on the web by Microsoft as...
Nirsoft Simple Program Debugger - Nirsoft Simple Program Debugger is a debugging software that analyzes and displays all major debugging events across your computer, after connecting to either the running program or starting a new program in the debugging mode.
Ghidra - Software Reverse Engineering (SRE) Framework
SoftICE - SoftICE is a debugging software for windows and DOS that analyzes all your programs and repairs them.