mozilla/uniffi-rs

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

4896 stars · 325 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

UniFFI is a Rust toolkit that generates foreign-language bindings for Rust code, letting you write core logic once and call it from Kotlin, Swift, Python, Ruby, and more. Interfaces are described via UDL files or proc-macros, and the Rust code is compiled into a shared library for each target platform.

Use cases

• generate Kotlin bindings for a Rust library for Android apps
• expose Rust code to Swift for iOS development
• call Rust code from Python
• share business logic across mobile platforms written once in Rust
• create multi-language bindings for a Rust crate
• build cross-platform components with a Rust core

When to choose

• you have Rust business logic that must be reused across Android, iOS, and other targets
• you want auto-generated, maintained bindings instead of hand-written FFI code
• you prefer describing interfaces with proc-macros or UDL files

When to avoid

• you need C or C++ interop specifically (consider Diplomat or Interoptopus)
• you need a fully stable 1.0 API guarantee, as advanced features may break between upgrades
• your project is single-language and never crosses the FFI boundary

Facets

library · maturity active

sdk compiler developer-tools developer-tools cross-platform programming-languages rust jvm python ruby cross-platform ffi bindings-generator foreign-function-interface proc-macros udl interop swift mobile

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markdown · JSON · MCP: product_card(name="mozilla/uniffi-rs")