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Bytecode Viewer VS dnSpy

Compare Bytecode Viewer VS dnSpy and see what are their differences

Bytecode Viewer logo Bytecode Viewer

A Java 8 Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)

dnSpy logo dnSpy

.NET assembly editor, decompiler, and debugger
Not present
  • dnSpy Landing page
    Landing page //
    2023-09-14

Bytecode Viewer features and specs

  • Comprehensive Toolset
    Bytecode Viewer offers an integrated suite of tools including a decompiler, disassembler, debugger, and analytics tool, which allows for a thorough inspection and analysis of Java bytecode within a single application.
  • User-Friendly Interface
    The tool is designed with an intuitive and user-friendly interface that simplifies the process of navigating and analyzing bytecode, even for users who may not have extensive experience in reverse engineering.
  • Multiple Decompiler Engines
    Bytecode Viewer supports multiple decompiler engines like CFR, Fernflower, Procyon, and others, allowing users to choose the best-suited one for their specific needs and preferences.
  • Cross-Platform
    The application is built to run on multiple platforms, including Windows, MacOS, and Linux, due to its Java-based nature, ensuring accessibility for users on different operating systems.
  • Open Source
    Being an open-source software, Bytecode Viewer allows users to contribute to its development, customize features, and inspect the source code to more deeply understand its workings.

Possible disadvantages of Bytecode Viewer

  • Performance Issues
    Some users have reported performance issues, particularly with large files or projects, which can lead to slower analysis and increased resource usage.
  • Limited Support for Other Languages
    While Bytecode Viewer excels with Java and Android bytecode, it doesn't support other programming languages, which might limit its utility for developers working in diverse environments.
  • Complexity for Beginners
    Despite its user-friendly interface, the complex nature of bytecode and reverse engineering might overwhelm beginners without enough support or guidance within the tool itself.
  • Dependency on Java Environment
    Since Bytecode Viewer is Java-based, it requires a Java Runtime Environment to be installed and configured correctly, which might add an extra step for users who do not have Java set up.
  • Occasional Bugs
    As with many open-source projects, Bytecode Viewer can sometimes have bugs that might affect its stability or functionality, depending on its version and the system it's run on.

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.

Bytecode Viewer videos

Bytecode Viewer Beta 1.5.3

dnSpy videos

How to Debug .NET Application with DnSPY?

More videos:

  • Review - ConfuserEx Trick Remove Anti Tamper (DnSpy)

Category Popularity

0-100% (relative to Bytecode Viewer and dnSpy)
IDE
37 37%
63% 63
Development
100 100%
0% 0
Decompiler
23 23%
77% 77
Tool
100 100%
0% 0

User comments

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Reviews

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

Bytecode Viewer Reviews

We have no reviews of Bytecode Viewer yet.
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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

Social recommendations and mentions

Based on our record, Bytecode Viewer seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Bytecode Viewer mentions (2)

  • CandyPixel - Known Information Wanted Please.
    If you do use this plugin I'd recommend also using https://bytecodeviewer.com/ to check the supposed malicious lines of code. Source: about 3 years ago
  • A response from r/AskReddit. Are we even surprised?
    Take a look at tools like this one to get an idea of what you can actually get: https://bytecodeviewer.com/. Source: over 3 years ago

dnSpy mentions (0)

We have not tracked any mentions of dnSpy yet. Tracking of dnSpy recommendations started around Mar 2021.

What are some alternatives?

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

APK Editor Studio - APK Editor Studio is an open-source Android application editor that allows you to edit APKs with the help of reverse engineering.

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.

JADX - JADX is a decompilation tool that can produce Java Source code from Dex and Apk files, being capable of providing human-readable java classes, it reverses AndroidManifest.

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.

Apktool - Apktool is an all-in-one tool that can extract all the resources inside an APK.

Java Decompiler - Yet another fast Java decompiler