Telerik Justdecompile Offline Installer Verified Here

Even without a constant connection, JustDecompile offered robust features for assembly browsing: One-Click Framework Loading

Offline functionality and limitations

Telerik JustDecompile is a professional-grade, free tool designed to decompile compiled .NET assemblies (DLLs and EXEs) into readable C#, VB.NET, or MSIL code. While it has been a staple in the .NET ecosystem for years, it was officially by Progress Telerik. New official downloads are no longer available on the main Telerik product page, though users who previously downloaded it can continue to use it. Core Features JustDecompile FAQ - Telerik telerik justdecompile offline installer

To confirm you truly have a functional offline installation: Even without a constant connection