NimTSSeamless TypeScript & WebAssembly Bridge for Nim

Zero-friction exports, non-blocking async coroutines, GC-bound stateful handles, and instant Vite integration.

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Zero-Overhead Exports

Applying {.exportts.} preserves 100% native Nim signatures. Your procedures remain callable in native CLI tools, VST/CLAP audio plugins, and native unit tests with zero overhead.

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Bidirectional Async Bridge

Automatically bridges Nim Future[T] to JavaScript Promise and vice-versa without blocking the single-threaded WebAssembly runtime.

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Stateful Handles with Automatic GC

Opaque type-safe handles for ref object instances with automatic JavaScript FinalizationRegistry integration and deterministic manual .dispose().

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Direct Vite Plugin

Import .nim files directly into your frontend code with automated on-the-fly compilation, bundle caching, and hot module reloading.

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AudioWorklet & Worker Ready

Streaming instantiation, pre-compiled WebAssembly.Module cross-thread sharing, and BufferSource loaders designed for real-time audio synthesis.

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Type-Safe Marshaling

Automatic compile-time .d.ts and .js glue generation for numbers, bigints, strings, byte arrays, complex value objects, and classes.