dnSpyEx is described as 'Unofficial continuation of the dnSpy project which debugger and .NET assembly editor. You can use it to edit and debug assemblies even if you don't have any source code available. Main features:' and is a Decompiler in the development category. There are more than 10 alternatives to dnSpyEx for a variety of platforms, including Windows, Linux, Mac, .NET Framework and BSD apps. The best dnSpyEx alternative is Ghidra, which is both free and Open Source. Other great apps like dnSpyEx are x64dbg, IDA, GNU Project Debugger and ILSpy.
Ghidra is a software reverse engineering (SRE) framework created and maintained by the National Security Agency Research Directorate. This framework includes a suite of full-featured, high-end software analysis tools that enable users to analyze compiled code on a variety of...
x64dbg is a 64-bit assembler-level debugger for Windows. The corresponding 32-bit debugger is called x32dbg.
IDA delivers robust disassembly and decompilation, supporting diverse processors and file formats. Its high-quality pseudocode mirrors original source code, aiding analysis of multi-platform software. It features dynamic debugging, metadata control with Lumina, and effective code deobfuscation.
GNU Project Debugger, or gdb, is a command-line, source-level debugger for programs that were written in C, C++, D, Objective-C, Fortran, Java, Pascal, assembly, Modula-2, or Ada and compiled for any of a number of different target architectures including x86, x86-64, IA-64...
Malcat is a feature-rich hexadecimal editor / disassembler / decompiler for reverse engineers and malware analysts. It has support for many file formats and CPUs, can scan for signatures, decrypt/decompress data, diff files and run python scripts.
What's Cool about dotPeek? Decompiling .NET 1.0-4.0 assemblies to C# Quick jump to a specific type, assembly, symbol, or type member Effortless navigation to symbol declarations, implementations, derived and base symbols, and more Accurate search for symbol usages with advanc.
dnSpy is a debugger and .NET assembly editor. You can use it to edit and debug assemblies even if you don't have any source code available.
angr is an open-source binary analysis platform for Python. It combines both static and dynamic symbolic ("concolic") analysis, providing tools to solve a variety of tasks.
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They are both disassemblers, but ILSpy is for MSIL (C#, F#, VB, etc), and Ghidra is for compiled C (and kinda C++) code in a wide range of CPU ASM languages, so they really have no overlay.