WebAssembly

WebAssembly (Wasm) is a compact binary instruction format: it provides a portable compilation target for languages like C/C++, Rust, and Go, enabling near-native speed execution in browsers and server-side environments.

WebAssembly (Wasm) is a low-level, stack-based virtual machine instruction set: it is a W3C standard, not a human-written language. Developers compile high-performance code, typically from C/C++ (via Emscripten) or Rust, into the compact `.wasm` binary format. This format executes in a safe, sandboxed environment, achieving near-native performance for computationally intensive tasks like 3D rendering (WebGL), game engines, or complex data processing. Wasm runs alongside JavaScript in all major browsers (Chrome, Firefox, Safari, Edge) and is expanding rapidly into non-web use cases via WASI (WebAssembly System Interface) for serverless and containerized computing.

https://webassembly.org