dnSpy is a free and open-source tool tailored for debugging, decompiling, and editing .NET and Unity assemblies—even without source code. It supports light/dark themes and portable use, making it popular among developers and reverse engineers.

Features

  • Runtime debugging of .NET and Unity assemblies
  • Edit and recompile IL code live
  • High-fidelity decompiler (C#, IL view)
  • Portable app—no installation needed
  • Light and dark UI theme options
  • Free and open-source under GPLv3

Project Samples

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Categories

Debuggers

License

MIT License

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Additional Project Details

Operating Systems

Windows

Programming Language

C#

Related Categories

C# Debuggers

Registered

2025-07-07