Okteta - Okteta is a simple editor for the raw data of files.
OllyDbg - OllyDbg is a 32-bit assembler level analysing debugger.
Hiew - Hiew (short for Hackers view) is a popular console hex editor for DOS and Windows written by Eugene...
X64dbg - X64dbg is a debugging software that can debug x64 and x32 applications.
Hex Workshop - Hex Workshop: Hex Editor, Sector Editor, Base Converter and Hex Calculator for Windows
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.