OllyDbg - OllyDbg is a 32-bit assembler level analysing debugger.
Kcachegrind - Callgrind is a profiling tool and KCachegrind is able to visualize output of the profilers.
strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Valgrind - Valgrind is an instrumentation framework for building dynamic analysis tools.
X64dbg - X64dbg is a debugging software that can debug x64 and x32 applications.
dotMemory - dotMemory allows users to analyze memory usage in a variety of .NET and .NET Core applications.