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ILSpy vs Wappalyzer

Professional comparison and analysis to help you choose the right software solution for your needs.

ILSpy icon
ILSpy
Wappalyzer icon
Wappalyzer

ILSpy vs Wappalyzer: The Verdict

⚡ Summary:

ILSpy: ILSpy is a free, open-source .NET assembly browser and decompiler. It allows you to view and analyze the contents of .NET assemblies in C# and other .NET languages.

Wappalyzer: Wappalyzer is a cross-platform utility that uncovers the technologies used on websites. It detects content management systems, ecommerce platforms, web frameworks, web servers, JavaScript libraries, web server extensions and more.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature ILSpy Wappalyzer
Sugggest Score — —
Category Development Web Browsers
Pricing Open Source Open Source

Product Overview

ILSpy
ILSpy

Description: ILSpy is a free, open-source .NET assembly browser and decompiler. It allows you to view and analyze the contents of .NET assemblies in C# and other .NET languages.

Type: software

Pricing: Open Source

Wappalyzer
Wappalyzer

Description: Wappalyzer is a cross-platform utility that uncovers the technologies used on websites. It detects content management systems, ecommerce platforms, web frameworks, web servers, JavaScript libraries, web server extensions and more.

Type: software

Pricing: Open Source

Key Features Comparison

ILSpy
ILSpy Features
  • Decompile .NET assemblies into C# and other .NET languages
  • Navigate and view the contents of assemblies
  • Search for types, methods, properties, etc.
  • View metadata and attributes for types and members
  • Compare different versions of assemblies
  • Plugin architecture to extend functionality
Wappalyzer
Wappalyzer Features
  • Detects technologies used on websites
  • Browser extension and standalone app versions available
  • Recognizes over 1500 applications
  • Open source and free

Pros & Cons Analysis

ILSpy
ILSpy

Pros

  • Free and open source
  • Works on Windows, Linux and Mac
  • Supports wide range of .NET assembly versions
  • Integrates with Visual Studio
  • Active development and user community

Cons

  • Limited decompilation of obfuscated assemblies
  • No official support offered
  • UI is basic and unpolished in places
  • Steep learning curve for some advanced features
Wappalyzer
Wappalyzer

Pros

  • Easy to use
  • Fast and accurate detection
  • Frequent updates to detect new technologies
  • Helpful for web developers and security researchers

Cons

  • Limited configuration options
  • Occasional false positives in detection
  • No enterprise support plans

Pricing Comparison

ILSpy
ILSpy
  • Open Source
Wappalyzer
Wappalyzer
  • Open Source

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ILSpy
ILSpy
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Wappalyzer
Wappalyzer
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