ILSpy

ILSpy is the open-source .NET assembly browser and decompiler. Visual Studio 2022 ships with decompilation support for F12 enabled by default (using our engine v7.1). In Visual Studio 2019, you have to manually enable F12 support. Go to Tools / Options / Text Editor / C# / Advanced and check Enable navigation to decompiled source. C# for Visual Studio Code ships with decompilation support as well. To enable, activate the setting "Enable Decompilation Support. ILSpy is distributed under the MIT License. Please see the About doc for details, as well as third-party notices for included open-source libraries. Visual Studio 16.3 and later include a version of the .NET (Core) SDK that is managed by the Visual Studio installer - once you update, it may get upgraded too. Please note that ILSpy is only compatible with the .NET 6.0 SDK and Visual Studio will refuse to load some projects in the solution.

Features

Decompilation to C#
Whole-project decompilation
Search for types/methods/properties
Hyperlink-based type/method/property navigation
Base/Derived types navigation, history
Assembly metadata explorer

Project Samples

Project Activity

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License

MIT License

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ILSpy Web Site

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dappervoid Posted 2025-07-10

The best .NET decompiler I've used

Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

Related Categories

C# Decompilers

Registered

2022-09-09

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