Immunity Debugger is described as 'Powerful new way to write exploits, analyze malware, and reverse engineer binary files. It builds on a solid user interface with function graphing, the industrys first heap analysis tool built specifically for heap creation, and a large and well supported' and is an app in the development category. There are more than 10 alternatives to Immunity Debugger for a variety of platforms, including Windows, Linux, Mac, Web-based and BSD apps. The best Immunity Debugger alternative is Ghidra, which is both free and Open Source. Other great apps like Immunity Debugger are x64dbg, IDA, OllyDbg and Cutter.