A WebAssembly executor for Dart and Flutter applications. Uses Rust's wasmtime optimizing runtime or wasmi interpreter to parse and execute WASM and WAT files.

WebAssembly Component Model based REPL with sandboxed multi-language plugin system - unified codebase runs in CLI (Rust) and web (TypeScript)

WebAssembly library, toolchain and runtime for eBPF programs

Experimental Go parser and compiler.

Binaryen bindings for Rust.

Contract-driven runtime for portable business capabilities — spec-governed, WASM-first, composable across browser, edge, cloud, and AI.

The WebAssembly Pre-Initializer

A virtual filesystem layer for WASI.

Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.

Lunatic is an Erlang-inspired runtime for WebAssembly