wazero/wazero

Health v2 · maintenance only

Adoption not part of the score

6399 stars · 359 forks observed · 2026-10-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

wazero is a zero-dependency WebAssembly runtime written in pure Go, supporting the WebAssembly Core Specification 1.0 and 2.0 with both an interpreter and an ahead-of-time compiler. It lets Go applications safely execute Wasm modules compiled from any language without CGO, preserving cross-compilation.

Use cases

• run webassembly modules in a go application
• extend a go app with plugins written in other languages
• sandbox untrusted wasm code without cgo dependencies
• run .wasm binaries from the command line
• embed a wasm runtime that keeps go cross-compilation working
• execute wasm on platforms like riscv64 via the interpreter

When to choose

• you need a pure-Go WebAssembly runtime with zero dependencies and no CGO
• you want to sandbox and run guest code from C, Rust, or TinyGo inside a Go host
• cross-compilation of your Go binary must be preserved
• you need WASI support and spec-compliant Wasm 1.0/2.0 execution

When to avoid

• you need a general-purpose JavaScript runtime or non-Wasm sandboxing
• you require Wasm features beyond the 2.0 core specification
• your project is not in Go and you want bindings for another language

Facets

library · maturity stable

interpreter compiler developer-tools cross-platform go windows cli cross-platform wasm-runtime zero-dependency no-cgo wasi aot-compilation embeddable sandbox webassembly linux macos

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