ILSpy

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

Free Open Source Windows .NET Framework

.NET Reflector

.NET Reflector is a class browser and analysis tool for .NET. It allows developers to navigate, search, disassemble and analyze .NET components.

Commercial Windows .NET Framework

dotPeek

What's Cool about dotPeek? Decompiling .NET 1.0-4.0 assemblies to C# Quick jump to a specific type, assembly, symbol, or type member Effortless navigation to...

Free Windows

Telerik JustDecompile

JustDecompile is a stand-alone, free decompiling tool which converts .NET assemblies into source code. This Free Download Gives You Free .NET decompiler that helps...

Free Open Source Windows

Java Decompiler

The “Java Decompiler project” aims to develop tools in order to decompile and analyze Java 5 “byte code” and the later versions. JD-Core is a library that...

Open Source Free Personal Mac OS X Windows Linux IntelliJ IDEA Eclipse

Java Class File Editor

This is a tool to open Java class file binaries, view their internal structure, modify portions of it if required and save the class file back. It also generates...

Free Open Source Mac OS X Windows Linux

MSIL Disassembler

 The MSIL Disassembler is a companion tool to the MSIL Assembler (Ilasm.exe). Ildasm.exe takes a portable executable (PE) file that contains Microsoft intermediate...

Free Windows .NET Framework

Cavaj Java Decompiler

Cavaj Java Decompiler is a graphical freeware utility that reconstructs java source code from CLASS files. You can decompile java applets, jar and zip files producing...

Free Windows

JavaDecompilers.com

Java decompilers online: *JAD, *JDCore, *Procyon, *Fernflower, *CFR. ? A user interface to extract source code from .class and .jar ‘binary’ files.

Free Web

Procyon

A suite of Java metaprogramming tools focused on code generation, analysis, and decompilation.

Free Open Source Mac OS X Windows Linux BSD