x64dbg on 64 bit windows
IDA Pro Debugger/GDB/LLDB on Linux/OSX/iOS/Android
GDB everywhere else
as StillBored said, windbg for Windows kernel debugging, but I've honestly only used it in exotic situations for .NET debugging
x64dbg on 64 bit windows
IDA Pro Debugger/GDB/LLDB on Linux/OSX/iOS/Android
GDB everywhere else
as StillBored said, windbg for Windows kernel debugging, but I've honestly only used it in exotic situations for .NET debugging