Examples of disassemblers:
Ghidra
Disassembler and Decompiler developed by NSA and later published as a free and opensource software.
IDA Free
The free version has the limited set of features
objdump
Part of GNU binutils
Disassembler and Decompiler developed by NSA and later published as a free and opensource software.
The free version has the limited set of features
Part of GNU binutils