Bringing WebAssembly to React Native with Polygen

Callstack just dropped Polygen, bringing WebAssembly to React Native. This could change how we think about performance-critical code in mobile apps.

WebAssembly has been a game-changer for web performance, but it's been largely missing from the React Native ecosystem. Callstack's new tool, Polygen, aims to bridge that gap by enabling developers to run high-performance WebAssembly modules directly in React Native apps across iOS and Android.

Key Takeaways

• Polygen enables WebAssembly execution in React Native apps
• Opens door to reusing existing Wasm libraries in mobile
• Targets compute-heavy tasks like image processing and cryptography
• Works across iOS and Android with unified API

The article hints at specific use cases where Polygen outperforms traditional native modules, and the performance numbers are worth seeing.