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VB Decompiler VS dnSpy

Compare VB Decompiler VS dnSpy and see what are their differences

VB Decompiler

VB Decompiler Perfect source code recovery solution for Visual Basic 5.0/6.0 applications and fast disassembler for Visual Studio .NET compiled apps

Rating
0 reviews
Alternatives Is it good?
dnSpy

.NET assembly editor, decompiler, and debugger

Rating
0 reviews
Alternatives Is it good?
HTMLCSS to Image API
Capture website screenshots, render HTML/CSS, or create templated graphics. Render images or PDFs. Use MCP with AI, no-code automation, or the REST API. No browsers needed. sponsored

Which is more popular?

SRE popularity
100% vs 0%
alternatives listed
28 vs 79

Base details

Website, pricing, platforms and company facts side by side.

VB Decompiler
dnSpy
Website vb-decompiler.org github.com
Listed in
Developer Tools SRE Decompiler IDE +1
Software Development IDE Developer Tools Decompiler +1

Features and specs

What each product offers, as listed by its team.

VB Decompiler 0 features
dnSpy 5 features

No features have been listed yet.

  • 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

  • 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.

Analysis

An editorial look at what each product does well and who it suits.

VB Decompiler
dnSpy

Overall verdict

  • VB Decompiler is a solid, specialized tool for its niche purpose—analyzing and reverse-engineering Visual Basic compiled executables (both p-code and native code). It's good at what it's designed for, though its usefulness is inherently limited to legacy VB5/VB6 applications since VB.NET uses different compilation methods better handled by standard .NET decompilers.

Why this product is good

  • Effectively disassembles and analyzes VB5/VB6 compiled executables, recovering form layouts, string tables, and procedure structures
  • Provides both a free version for basic analysis and a paid Pro version with more advanced features like better pseudo-code generation
  • Long-standing tool with years of development focused specifically on VB internals, giving it deep specialization
  • Useful for malware analysis since older VB-compiled malware is otherwise hard to reverse engineer with generic tools
  • Generates readable pseudo-code approximations that can significantly speed up manual reverse engineering work

Recommended for

  • Security researchers and malware analysts examining legacy VB6 malware samples
  • Reverse engineers needing to recover logic from old VB5/VB6 software with lost source code
  • Developers maintaining or auditing legacy VB6 applications without original source access
  • Digital forensics professionals encountering VB-compiled binaries in investigations
  • Hobbyists interested in understanding how old Visual Basic executables are structured internally

No analysis of dnSpy yet.

Videos

Walkthroughs and reviews on video.

VB Decompiler 2 videos + Add
dnSpy 2 videos + Add

VB Decompiler - P-Code Decompilation

More videos

  • - VB Decompiler - Native Code Decompilation

How to Debug .NET Application with DnSPY?

More videos

  • - ConfuserEx Trick Remove Anti Tamper (DnSpy)

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
VB Decompiler
dnSpy
100% 100%
SRE
0% 0%
0% 0%
Software Development
100% 100%
50% 50%
Developer Tools
50% 50%
31% 31%
IDE
69% 69%

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

VB Decompiler no reviews yet
dnSpy no reviews yet
  • Reverse engineering tools review
    www.pelock.com · Sep 2022

    Applications created with Visual Basic 5 and 6 are all in the past now. However, internal structure of code based on P-Code was a cradle for .NET technology and from the very beginning it's been causing problems with...

  • Reverse engineering tools review
    www.pelock.com · Sep 2022

    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.

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