Project Roma

Roma is a cross-platform .NET assembly browser and decompiler built on ILSpy and Uno Platform. It runs natively on Windows and macOS using the Skia renderer.

Features

• Browse and decompile .NET assemblies (C#, IL, metadata)
• Cross-platform desktop app — Windows x64/ARM64 and macOS universal
• Full ILSpy decompiler engine (ICSharpCode.Decompiler + ICSharpCode.ILSpyX)
• Session restore: returns to the last viewed type/member on restart
• Back/Forward navigation history
• Click-to-navigate hyperlinks in decompiled code
• Six editor themes (Light, Dark, VS Code Light+, VS Code Dark+, ReSharper Light, ReSharper Dark)
• Assembly list management with presets

Building

Prerequisites: .NET 10 SDK, Uno Platform SDK.

dotnet build Roma/src/Roma.Host/Roma.Host.csproj

Packaging

CI packaging is triggered manually via Actions → Package (.github/workflows/package.yml). It produces:

• Roma-windows-x64 — Windows x64 publish directory
• Roma-windows-arm64 — Windows ARM64 publish directory
• Roma-macos-universal-dmg — macOS universal .dmg

Local macOS packaging:

dotnet publish Roma/src/Roma.Host/Roma.Host.csproj -r osx-arm64 -c Release
dotnet publish Roma/src/Roma.Host/Roma.Host.csproj -r osx-x64 -c Release
Roma/build/macos/build-application-bundle.sh osx-universal
Roma/build/macos/build-dmg.sh Roma.app Roma-macos-universal.dmg

Architecture

Roma links ILSpy source files directly (no fork) via <Compile ... Link="..." /> entries in the csproj. Platform-specific seams are guarded with #if ROMA_UNO. The Uno Platform Skia renderer replaces WPF's drawing surface; WPF shims (LeXtudio.Windows) bridge the remaining WPF API surface.

License

MIT — see LICENSE.

ILSpy is MIT licensed. See Roma/ext/ilspy/LICENSE.