Valdi

Valdi bridges the gap between developer productivity and runtime performance by combining TypeScript's developer-friendly syntax with a high-performance C++ rendering core. Unlike traditional cross-platform frameworks that rely on JavaScript bridges or web views, Valdi compiles directly to native UI components, eliminating performance bottlenecks that plague other solutions.

The framework addresses a critical challenge in mobile development: teams want to share code across platforms without compromising on the smooth, responsive user experience that native apps provide. Valdi achieves this by handling UI rendering at the native level while exposing a clean TypeScript API for business logic and component composition.

What sets Valdi apart is its architectural approach—the C++ foundation ensures consistent 60fps animations and instant touch responses, while the TypeScript layer provides modern development patterns like hot reload, strong typing, and component-based architecture. This dual-layer design means developers write code once but get performance that matches hand-written Swift or Kotlin.

With backing from Snapchat's engineering team and a growing community of over 16,000 developers, Valdi represents a production-tested solution for companies that refuse to compromise between development speed and user experience quality.