.NET Reflector

class browser, decompiler and static analyzer

.NET Reflector is a class browser, decompiler and static analyzer for software created with .NET Framework, originally written by Lutz Roeder. MSDN Magazine named it as one of the Ten Must-Have utilities … Wikipedia

Factsheet

Original author Lutz Roeder

Developer Red Gate Software

Stable release 10.3.0.1936
/ 15 October 2020; 5 years ago (2020-10-15)

Factsheet

Original author Lutz Roeder

Developer Red Gate Software

Stable release 10.3.0.1936
/ 15 October 2020; 5 years ago (2020-10-15)

jetbrains.com › decompiler

dotPeek: Free .NET Decompiler & Assembly Browser by JetBrains

May 26, 2021 - dotPeek is a free tool based on ReSharper. It can reliably decompile any .NET assembly into C# or IL code.

Redgate Software

red-gate.com › products › reflector

Decompile Any .NET Code | .NET Reflector

Decompile, browse, and analyze any .NET assembly to C#, VB.NET, or IL.

Videos

How do I decompile a .NET EXE into readable C# source code?

Decompile .NET DLL using ILSpy. Undo C# syntactic sugar - July ...

C# Tutorial - Decompile .NET DLL to Source Code using Reflector ...

[Online] The Best C# .Net Decompiler | Disassembly - YouTube

December 1, 2017

How to decompile (read source code of) .NET Framework assemblies ...

dotPeek - .NET decompiler and assembly browser - YouTube

February 10, 2017

CodemerxDecompile

decompiler.codemerx.com

CodemerxDecompile

The first standalone .NET decompiler for Mac, Linux and Windows. Free. For everyone. Forever.

Java decompiler online / APK decompiler - Decompiler.com

Navigate through and inspect decompiled code online without installing anything. .exe and .dll .NET decompilation back to C# project.

github.com › icsharpcode › ILSpy

GitHub - icsharpcode/ILSpy: .NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!

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

Starred by 24.2K users

Forked by 3.6K users

Languages C# 98.5% | JavaScript 0.6% | PowerShell 0.3% | Visual Basic .NET 0.2% | HTML 0.1% | Less 0.1%

devextras.com › home › .net codereflect

CodeReflect - Free .NET Decompiler

November 25, 2022 - CodeReflect - The free .NET decompiler for C# & VB.NET, standalone installation.

Decompiler Explorer

Decompiler Explorer is an interactive online decompiler which shows equivalent C-like output of decompiled programs from many popular decompilers.

jetbrains.com › decompiler › download

Download dotPeek: Free .NET Decompiler by JetBrains

May 26, 2021 - Download the latest version of dotPeek

Find elsewhere

Google Bing Mojeek

stackoverflow.com › questions › 179741 › how-do-i-decompile-a-net-exe-into-readable-c-sharp-source-code

How do I decompile a .NET EXE into readable C# source code? - Stack Overflow

Reflector and its add-in FileDisassembler.

Reflector will allow to see the source code. FileDisassembler will allow you to convert it into a VS solution.

When Red Gate said there would no longer be a free version of .Net Reflector, I started using ILSpy and Telerik's JustDecompile. I have found ILSpy to decompile more accurately than JustDecompile (which is still in Beta). Red Gate has changed their decision and still have a free version of .Net Reflector, but now I like ILSpy.

From the ILSpy website (https://github.com/icsharpcode/ILSpy/):

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

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)

Update:

April 15, 2012, ILSpy 2.0 was released. New features compared with version 1.0:

Assembly Lists
Support for decompiling Expression trees
Support for lifted operatores on nullables
Decompile to Visual Basic
Search for multiple strings separated by space (searching for "Assembly manager" in ILSpy.exe would find AssemblyListManager)
Clicking on a local variable will highlight all other occurrences of that variable
Ctrl+F can be used to search within the decompiled code view

Update:

ILSpy 2.1 supports async/await decompilation

codeproject.com › Articles › 5355807 › NET-5-Free-Decompilers

.NET – 5 Free Decompilers - CodeProject

Overview of 5 free .NET Decompilers

c-sharpcorner.com › article › net-5-free-decompilers2

.NET - 5 Free Decompilers

March 6, 2023 - Very fancy decompiling into Low-level/High-level of C#. I like that a lot. I really liked the PE format headers viewer. Reverse engineering into VS project had problems, which is strange for such a big name as JetBrains. Dependency diagrams are a nice addition, they can be nice for documenting projects. ... If you are looking for a stable, feature-rich, nice graphical interface, and well-maintained application, dotPeek is your choice. That is the only .NET Decompiler you will ever need, and you can use it freely at home and any workplace you will be working.

preemptive.com › dotfuscator › pro › userguide › en › protection_reverse_engineering.html

Reverse Engineering - Dotfuscator Professional 7.2.2

You can take it a step further and actually recreate the source code from an application by using a decompiler. These utilities can decompile a .NET assembly directly back to a high level language like C#, VB .NET, or Managed C++. There are many decompilers available to easily see the source of any .NET application.

netdecompiler.com

Dis# - .NET decompiler

Dis# is .NET decompiler that allows to edit names in decompiled code and persist changes in project file.

.NET Decompiler - decompile, recover, convert exe/dll to C#, VB.Net, ...

.NET Decompiler - .Net assembly decompiler that recovers source code from crashes and convert executables to C#, Vb.Net, J#, Delphi.Net and managed C++ code.

dlldecompiler.net › home

Decompile DLL to Source Code with Free DLL Decompiler Online

September 15, 2025 - Are you looking for a reliable DLL decompiler service to extract source code from DLL files? Contact us using the 24/7 available live chat on telegram, our average response time is 5 minutes. ... Extract source code from compiled DLL files effortlessly. Cost depends on the file’s complexity. Contact us on telegram to get a quote, our average response time is 5 minutes. Disassemble .NET assemblies and recover C# or VB.NET source code.

blog.ndepend.com › home › .net – 7 decompiler compared (2025)

.NET - 7 Decompiler Compared (2025) - NDepend Blog

November 12, 2025 - ILSpy is actually so mature that Visual Studio itself relies on it to generate source code from .NET assemblies while debugging. You can also read Decompilation of C# code made easy with Visual Studio. This is a great feature when you don’t have access to the source code of a library that your code is consuming (the black-box syndrome).

codeguru.com › home › .net

DotPeek Tool: A .NET Decompiler Tool | www.CodeGuru.com

December 19, 2021 - The dotPeek decompiler tool was initially introduced by Microsoft. It is a free-of-charge, standalone tool and decompiler for .NET assemblies. It converts .NET assemblies into equivalent C# code and optionally shows the underlying IL code.

bytehide.com › home › the best .net decompiler comparison guide ✅ (free and paid)

The Best .NET Decompiler Comparison Guide ✅ (Free and Paid)

July 4, 2022 - In the jungle of .NET decompilers and disassemblers there are many options, we can find a great variety of tools and options: Free and paid, open-source and private, online and offline, for different operating systems, etc…

stackoverflow.com › questions › 1503943 › how-to-decompile-a-dll-file-created-in-vs-net

c# - How to decompile a .dll file created in VS.net - Stack Overflow

Edit 2: I now use DotPeek from Jetbrains. Its ability to decompile as I need to while debugging is amazing.

Edit: Now that Reflector is no longer a free tool, a newer tool ILSpy is under development.

ILDASM is your friend if you don't want to use other tools.

Check out Reflector.

telerik.com › products › decompiler.aspx

Telerik JustDecompile is Retired

Discover why Telerik JustDecompile is retiring. Find other innovative alternatives for seamless web and app development.