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Java Decompiler VS ILSpy

Compare Java Decompiler VS ILSpy and see what are their differences

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Java Decompiler logo Java Decompiler

Yet another fast Java decompiler

ILSpy logo ILSpy

ICSharpCode. Decompiler. Console..
  • Java Decompiler Landing page
    Landing page //
    2021-09-17
  • ILSpy Landing page
    Landing page //
    2023-04-02

Java Decompiler features and specs

  • High-Quality Output
    JD provides one of the more accurate and readable reconstructed source codes from compiled Java bytecode.
  • User-Friendly Interface
    The interface of JD is designed to be intuitive and easy to navigate, making it accessible to both beginners and experienced users.
  • Cross-Platform Support
    JD is available for multiple platforms, including Windows, Linux, and Mac OS, ensuring that developers can use it on their preferred systems.
  • Integration with IDEs
    JD can be integrated into popular IDEs, facilitating a seamless workflow for developers who need decompilation features.

Possible disadvantages of Java Decompiler

  • Limited Java Version Compatibility
    JD may not fully support newer Java versions or the latest features, which could be a limitation for projects using the latest Java features.
  • No Active Development
    Lack of frequent updates may result in missing support for newer obfuscation techniques or improvements seen in other decompilers.
  • Potential Legal Issues
    Decompiling software can potentially breach intellectual property laws or terms of service agreements, depending on jurisdiction and specific use cases.
  • Limited Community Support
    Due to a smaller user base compared to some other tools, finding community support, plugins, or third-party resources can be more challenging.

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.

Java Decompiler videos

+ Add

Java decompiler Demo || Software for Converting .class to .java || Compile vs Decompile

More videos:

  • Tutorial - How to decompile JAR by JD GUI Tool | Java Decompiler | Open Source Decompiler UI Tool

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 Java Decompiler and ILSpy)

Java Decompiler

ILSpy

IDE
61 61%
IDE
39% 39
Decompiler
62 62%
Decompiler
38% 38
Developer Tools
63 63%
Developer Tools
37% 37
Software Development
0 0%
Software Development
100% 100

User comments

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Reviews

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

Java Decompiler Reviews

Reverse engineering tools review
JD-GUI or Java Decompiler is a decompiler for Java applications, hence its name. It allows for viewing of compiled units code*.class or whole *.jar bundles.
Source: www.pelock.com

ILSpy Reviews

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

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

Decompiler.com - Online Java and Android decompiler. Just drag and drop .JAR or .APK file and browse decompiled content online.

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.

dnSpy - .NET assembly editor, decompiler, and debugger

.NET Reflector - .

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 (…

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.

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