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siegi44 edited this page Jun 9, 2011 · 53 revisions

ILSpy is the open-source .NET assembly browser and decompiler.

Development started after Red Gate announced that the free version of .NET Reflector would cease to exist by end of February 2011.

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Beta Release (ILSpy 1.0.0.943):

ILSpy requires .NET 4.0.

Test the latest ILSpy builds: Build Server

Get ILSpy plugins from here.

ILSpy Features

  • Assembly browsing
  • IL Disassembly
  • Decompilation to C#
    • Supports lambdas and 'yield return'
    • Shows XML documentation
  • Saving of resources
  • Search for types/methods/properties (substring)
  • Hyperlink-based type/method/property navigation
  • Base/Derived types navigation
  • Navigation history
  • BAML to XAML decompiler
  • Save Assembly as C# Project
  • Find usage of field/method
  • Extensible via plugins (MEF)

ILSpy 1.0 Roadmap

  • Support all C# 4.0 features except for expression trees, dynamic, and fixed fields
  • Make Analyzer UI easier to use

ILSpy 2.0 Roadmap

  • Assembly Lists
  • Support the remaining C# 4.0 features
    • Expression trees
    • C# 4.0 "dynamic"
    • Fixed fields ("struct A{ public unsafe fixed int Field[10]; }")
    • Simplify comparison operators on nullables
    • Add casts where required to make C# overload resolution call the correct method
  • Debugger Eusebiu's blog, integration builds

ILSpy - Further Down the Road

  • Decompile to Visual Basic
  • Visual Basic support (pre-info)
  • Support C# 5.0 "async"
  • Bookmarks
  • Decompiling ILSpy with itself and recompiling the result should result in a working ILSpy copy
  • Assembly editing capabilities (similar to Reflexil)

Release History

Want to know when major new features are added? When a new stable version is released?

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Discussion Forum

http://community.sharpdevelop.net/forums/69.aspx

Please use the forum to discuss issues, feature ideas, et cetera. For bug reporting, either use the forum or if you have a GitHub account, add them directly to https://github.com/icsharpcode/ILSpy/issues

Blog Posts on ILSpy Development

ILSpy Source Code

See https://github.com/icsharpcode/ILSpy

Screencasts, Demo & How To Videos

Screenshots

Viewing IL (Build 199)

Navigating Types (Build 199)

Saving Resources (Build 199)

Decompiling a Type to C# (Build 199)

Decompiling method with 'yield return' (Build 528)