JustDecompile is a free .NET decompiler engine developed by Progress Telerik. It allows developers to: Convert binary code ( DLLcap D cap L cap L EXEcap E cap X cap E files) back into readable C# or VB.NET code.

Download a single zip file, extract it, and run it instantly on air-gapped systems.

Historically benchmarked as significantly faster than leading competitors.

Verify that the signer name reads (or Telerik AD for legacy versions).

Which (e.g., .NET Framework 4.x or modern .NET Core/.NET 8) are you planning to decompile?