memory64webassemblyperformancerustwasm-bindgen
Memory64 in 2026: Breaking the 4GB Ceiling in Browsers and Servers
Memory64 is finally here: shipped in Chrome 133, production-ready in Wasmtime and WasmEdge, and wired up in Rust via wasm-bindgen 0.2.120. Here's what changes, what doesn't, and how to use it today.