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ILSpy vs dnSpyEx: catalog facts
ILSpy	dnSpyEx
	Screenshots
Best for: Browse and decompile .NET assemblies	Best for: Reverse engineers and developers inspecting or debugging .NET programs
Free The open-source software is available without a license fee. Hosting, hardware and external services are separate.	Free Free and open source.
Windows, macOS, Linux	Windows
Provides a graphical way to inspect reconstructed code.	Decompiler, debugger and assembly editor in one tool Debugs .NET assemblies without their source code Maintained continuation of a widely used tool
Decompiled output may differ from the original source.	Unofficial fork of the original project Windows only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for ILSpy github.com/icsharpcode/ILSpy github.com/icsharpcode/ILSpy/blob/master/LICENSE Catalog checked September 22, 2026	Official website Full listing and sources Sources for dnSpyEx github.com/dnSpyEx/dnSpy Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.

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