KDAB/cxx-qt

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1537 stars · 108 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

CXX-Qt is a set of Rust crates providing safe bidirectional bindings between Rust and Qt via CXX. It lets developers implement QObject subclasses in Rust usable from C++, QML, and JavaScript, with code generation for signals, slots, and properties.

Use cases

• build a Qt GUI application with business logic in Rust
• integrate Rust code into an existing C++ Qt application
• expose Rust structs as QML types with properties and signals
• call Qt C++ APIs from Rust safely
• create cross-platform desktop apps mixing Rust and QML

When to choose

• you want safe, idiomatic Rust-Qt interop rather than raw FFI bindings
• you need QObject subclasses implemented in Rust for QML or C++ use
• you're building a Qt app with Cargo or integrating Rust into a CMake Qt project

When to avoid

• you need a pure-Rust GUI toolkit without C++ dependencies
• you only need simple C++ FFI without Qt-specific features (plain CXX suffices)
• you target platforms where Qt and Rust toolchains aren't both supported

Facets

library · maturity active

sdk developer-tools build-tool cross-platform desktop-applications developer-tools windows rust cpp wasm qt qml ffi cxx bindings gui signals-slots linux macos

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