
cheatengine.org
https://www.cheatengine.org/help/Memoryview.htm
Memory view - Cheat Engine
The memory view contains several tools and functions for advanced game hackers like the autoassembler engine, a codecave scanner, a thread generator, a memory allocator, a code dissector, a DLL injector, debugger options, a disassembler, an assembler, a hex viewer and more.