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Bytecode Viewer vs ILSpy

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

Bytecode Viewer icon
Bytecode Viewer
ILSpy icon
ILSpy

Bytecode Viewer vs ILSpy: The Verdict

⚡ Summary:

Bytecode Viewer: Bytecode Viewer is a Java bytecode viewer, disassembler, and debugger that allows users to easily view and analyze Java class files. It supports analyzing class files from Java versions 5-17 and can show method signatures, bytecode instructions, stack map frames and more.

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.

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 Bytecode Viewer ILSpy
Sugggest Score — —
Category Development Development
Pricing Open Source Open Source

Product Overview

Bytecode Viewer
Bytecode Viewer

Description: Bytecode Viewer is a Java bytecode viewer, disassembler, and debugger that allows users to easily view and analyze Java class files. It supports analyzing class files from Java versions 5-17 and can show method signatures, bytecode instructions, stack map frames and more.

Type: software

Pricing: Open Source

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

Key Features Comparison

Bytecode Viewer
Bytecode Viewer Features
  • Disassembles and decompiles Java class files
  • Supports Java versions 5-17
  • Shows method signatures, bytecode instructions, stack map frames and more
  • Allows searching and editing of classes
  • Plugins available for added functionality
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

Pros & Cons Analysis

Bytecode Viewer
Bytecode Viewer
Pros
  • Free and open source
  • Simple interface
  • Works offline
  • Lightweight and fast
Cons
  • Limited debugging capabilities
  • No mobile app
  • Steep learning curve for advanced features
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

Pricing Comparison

Bytecode Viewer
Bytecode Viewer
  • Open Source
ILSpy
ILSpy
  • Open Source

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Learn More About Each Product

Bytecode Viewer
Bytecode Viewer
Reviews, pricing & alternatives →
ILSpy
ILSpy
Reviews, pricing & alternatives →

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