1:.Net Reflector 【收费】
官方网址:http://www.red-gate.com/products/dotnet-development/reflector/git
2:ILSpy/dnSpy 【免费】
官方网址:http://ilspy.net/github
3:dnSpy
https://github.com/0xd4d/dnSpy/releases.net
4:JetBrains dotPeek【免费】
官方网址:http://www.jetbrains.com/decompiler/it