What is a .FSPROJ file?
FSPROJ is an F# project file for Visual Studio and .NET.
- Did you know
- A .fsproj is the F# counterpart of the .NET project file.
- In an .fsproj the order of files matters: F# compiles them top to bottom and forbids forward references to code not yet seen.
- F# was designed by Don Syme at Microsoft Research as a .NET member of the ML family, modelled on OCaml.
- What Analyser reads
- Identify and read metadata from developer and data files: JWT tokens (header + claims + expiry), WebAssembly, Java class files, NumPy/Safetensors/GGUF model files, source maps, SQL dumps, Visual Studio/.NET projects, Terraform, Protobuf, GraphQL, SARIF, Python bytecode, and Apple property lists (XML + binary). Jupyter notebooks (IPYNB) and HAR captures now open in a full viewer - see Notebooks & data above.
- Depth of analysis
- .FSPROJ is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .FSPROJ file
- Drag a .FSPROJ file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.