wasm

A binary instruction format for a stack-based virtual machine that executes code at near-native speed across all major browsers.

WebAssembly (Wasm) provides a high-performance compilation target for languages like C++, Rust, and Go, enabling complex applications—think AutoCAD or Google Earth—to run in the browser without plugins. It operates alongside JavaScript within the same security sandbox, utilizing a compact binary format that minimizes download times and maximizes execution efficiency. With support from the W3C and all four major browser engines, Wasm is the industry standard for bringing heavy-duty computational workloads to the web.

https://webassembly.org