JustDecompile provides multiple search methods:

: Ensure the target machine has the required .NET runtime installed.

Telerik JustDecompile: The Ultimate Free .NET Decompiler Telerik JustDecompile has long been a staple in the .NET developer's toolkit, providing a powerful and efficient way to explore compiled assemblies. While , it remains a highly functional tool for those who already have it or can access existing offline installers. Why Telerik JustDecompile is a "Best-in-Class" Tool

Supports a robust plugin API to extend functionality.

While Telerik has modernized its distribution strategy, the "best" offline installer for JustDecompile remains the standalone MSI package obtained via the Telerik Control Panel. This method preserves the integrity of the Windows installation process while ensuring the application can run in a sandboxed environment. For maximum portability, the NuGet extraction method serves as a viable alternative, though it requires manual configuration of paths and may lack shell integration.

For many developers, the journey began with a search for the offline installer

: To fill the void, the creators officially recommended shifting to other free champions like JetBrains dotPeek

JustDecompile has been officially retired by Progress Software as of April 2, 2024

. This tool uses the same open-source engine and maintains the "free forever" promise.

As of April 2, 2024, Telerik JustDecompile has been officially retired

While the UI is proprietary, the underlying decompilation engine is open source under the Apache 2.0 license, allowing community contributions to improve its core logic. Key Features and Capabilities

Telerik’s default download is typically a small bootstrap executable (the online installer). This method requires:

[Compiled .NET Assembly (.dll/.exe)] │ ▼ ┌──────────────────┐ │ JustDecompile │ └──────────────────┘ │ ▼ [Readable C# / VB.NET / IL Source Code] Essential Capabilities

This method is the primary, official route to the classic MSI Installer.

Since the product is discontinued, consider keeping multiple versions of the offline installer (ZIP and MSI) in your archive. Different projects may require different versions for compatibility.

: A free standalone tool from JetBrains that can decompile .NET assemblies into equivalent C# code and optionally into IL. CodemerxDecompile : Some community members have transitioned to CodemerxDecompile