google/crubit

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1094 stars · 79 forks observed · 2026-09-03

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

Crubit is a bidirectional bindings generator that automatically creates FFI bindings between C++ and Rust, enabling code in either language to call the other. It maps Rust structs, functions, and traits (like Display) to C++ equivalents and vice versa, aiming to integrate the two ecosystems.

Use cases

• call Rust functions from C++ code
• call C++ APIs from Rust
• generate FFI bindings between C++ and Rust automatically
• migrate a C++ codebase incrementally to Rust
• use Rust libraries in an existing C++ project
• expose C++ structs and functions to Rust with idiomatic types

When to choose

• you need automated, type-safe interop between C++ and Rust rather than hand-written bindings
• you are incrementally introducing Rust into a large C++ codebase (or vice versa)
• you want bindings that map references, optionals, smart pointers, and string types idiomatically

When to avoid

• you only need simple C ABI bindings that cbindgen or bindgen already handle
• your project requires only stable, long-term-supported tooling - Crubit's supported feature set is still evolving
• you work in a pure Rust or pure C++ codebase with no cross-language needs

Facets

cli-tool · maturity active

developer-tools compiler code-review developer-tools programming-languages cross-platform cpp rust windows ffi bindings-generator interop cxx rust-bindings language-interop linux macos

Member repositories

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