Zero-Copy JS-to-WASM Bridge Layer

C5/10May 20, 2026
WhatA middleware library that enables zero-copy data sharing between JavaScript and WebAssembly modules, eliminating the serialization overhead that makes WASM adoption painful for performance-critical web apps.
SignalDevelopers are frustrated that WASM's isolation model forces expensive data copying between JS and WASM, and some were considering compiling to the now-dead asm.js specifically to avoid this overhead — indicating a real, unsolved pain point in the WASM ecosystem.
Why NowThe WebAssembly memory-control proposal for zero-copy buffers is actively in development, and asm.js removal eliminates the fallback option, forcing the ecosystem to finally solve WASM interop properly.
MarketWeb developers building performance-critical applications (games, media processing, crypto, scientific computing); TAM tied to the broader WASM tooling market (~$500M+); competitors like Emscripten handle compilation but not the interop layer well.
MoatDeep integration with the evolving WASM spec proposals creates switching costs once adopted into build pipelines.
Saying goodbye to asm.js View discussion ↗ · Article ↗ · 399 pts · May 20, 2026

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