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JetBrains dotPeek 2026.1.0.1 is a standalone .NET decompiler and assembly browser produced by JetBrains s.r.o. that enables developers to inspect, navigate, and debug compiled .NET code without requiring the original source. Introduced as part of JetBrains’ portfolio of productivity tools, the program converts assemblies written in C#, VB.NET, IL, and other CLI languages back into readable C# presentations, making it valuable for code recovery, security auditing, legacy maintenance, and third-party library investigation. Its integrated metadata tree, cross-reference engine, and bookmark system allow rapid traversal of types, methods, and resources, while on-the-fly IL-to-C# translation supports step-through debugging directly from Visual Studio through the dotPeek symbol server. Additional features include export of decompiled projects to Visual Studio solutions, NuGet package exploration, and hierarchical dependency diagrams that reveal assembly relationships at a glance. Over fifteen major versions have been released since the utility debuted, each refining IL parsing accuracy, adding support for newer CLR constructs, and improving IDE integration. The current 2026.1.0.1 build extends these capabilities to .NET 9 assemblies, enhances async-stream decompilation, and offers tighter navigation links to JetBrains Rider and ReSharper. As a profiling adjunct, dotPeek complements JetBrains’ performance tools by letting engineers correlate hot paths with underlying IL, although its primary designation remains that of a decompiler within the Developer Tools > Debugging & Compilers category. JetBrains dotPeek is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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