dnSpy - .NET assembly editor, decompiler, and debugger
Decompiler.com - Online Java and Android decompiler. Just drag and drop .JAR or .APK file and browse decompiled content online.
ILSpy - ICSharpCode. Decompiler. Console..
dotPeek - dotPeek is a free tool based on ReSharper. It can reliably decompile any . NET assembly into C# or IL code. Download dotPeekCommunity. Materials Newsletters, webinars.
Java Class File Editor - classeditor - tool to edit class file binaries
.NET Reflector - .