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dnSpy VS ILSpy

Compare dnSpy VS ILSpy and see what are their differences

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dnSpy logo dnSpy

.NET assembly editor, decompiler, and debugger

ILSpy logo ILSpy

ICSharpCode. Decompiler. Console..
  • dnSpy Landing page
    Landing page //
    2023-09-14
  • ILSpy Landing page
    Landing page //
    2023-04-02

dnSpy features and specs

  • Comprehensive Feature Set
    dnSpy offers a wide range of features, including debugging, decompiling, and editing .NET assemblies, making it a comprehensive tool for .NET developers and reverse engineers.
  • Open Source
    Being open-source, dnSpy allows users to inspect, modify, and contribute to its codebase, fostering community contributions and ensuring transparency.
  • Active Community
    The project has an active user and developer community, which provides support, plugins, and frequent updates, enhancing its utility and robustness.
  • User-Friendly Interface
    dnSpy provides an intuitive and user-friendly interface, making it accessible for both novice and experienced users.
  • Assembly Editing
    It allows users to edit assemblies and apply changes in real-time, a useful feature for patching applications or conducting detailed analyses.

Possible disadvantages of dnSpy

  • Steep Learning Curve
    Despite its powerful capabilities, dnSpy has a steep learning curve for newcomers, particularly those without prior experience in reverse engineering or .NET development.
  • Performance Issues
    Some users may experience performance lags or memory usage spikes when dealing with large assemblies or complex projects.
  • Legal/Ethical Concerns
    The tool can be used for unauthorized reverse engineering or tampering with software, raising potential legal and ethical concerns.
  • Limited Non-.NET Support
    While excellent for .NET applications, dnSpy lacks robust support for analyzing non-.NET binaries, potentially limiting its use cases.

ILSpy features and specs

  • Open Source
    ILSpy is open source, allowing developers to contribute to its development and customize it according to their needs.
  • User Friendly
    The user interface is intuitive and easy to navigate, which makes it accessible for both beginners and experienced developers.
  • Active Community
    There is an active community of users and contributors who provide support, plugins, and updates.
  • Supports Multiple Versions
    ILSpy can decompile assemblies generated with various versions of .NET, making it versatile for different projects.
  • Continuous Updates
    Regular updates ensure compatibility with the latest .NET versions and introduce new features and improvements.

Possible disadvantages of ILSpy

  • Limited Debugging
    ILSpy primarily focuses on decompilation and lacks comprehensive debugging features found in some other tools.
  • Performance Issues
    When dealing with large assemblies, ILSpy may experience slowdowns or performance issues during decompilation.
  • Complex Assemblies
    For very complex or obfuscated assemblies, the decompiled code might not be very readable or accurate.
  • No Direct Editing
    ILSpy does not support editing the decompiled code directly, which means developers need to use additional tools for modifications.

dnSpy videos

+ Add

How to Debug .NET Application with DnSPY?

More videos:

  • Review - ConfuserEx Trick Remove Anti Tamper (DnSpy)

ILSpy videos

+ Add

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

More videos:

  • Tutorial - ILSpy -- How to Add Execute Extension

Category Popularity

0-100% (relative to dnSpy and ILSpy)

dnSpy

ILSpy

IDE
55 55%
IDE
45% 45
Decompiler
56 56%
Decompiler
44% 44
Software Development
67 67%
Software Development
33% 33
Developer Tools
53 53%
Developer Tools
47% 47

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare dnSpy and ILSpy

dnSpy Reviews

Reverse engineering tools review
Reincarnation of the excellent dnSpy described above, made by a Polish guy ElektroKill. Updated libraries to support latest .NET versions, fixed bugs. Just download and test.
Source: www.pelock.com

ILSpy Reviews

We have no reviews of ILSpy yet.
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What are some alternatives?

When comparing dnSpy and ILSpy, you can also consider the following products

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 Decompiler - Yet another fast Java decompiler

.NET Reflector - .

Telerik JustDecompile - Free. For everyone. Forever. With an open source decompilation engine

IDA - The best-of-breed binary code analysis tool, an indispensable item in the toolbox of world-class software analysts, reverse engineers, malware analyst and cybersecurity professionals.

CFR - CFR is a JVM bytecode decompiler - it will decompile modern Java features - up to and including much of Java 9, but is written entirely in Java 6, so will work anywhere! - It'll even make a decent go of turning class files from other JVM languages (…

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