WAVM/WAVM

Health v2 · maintenance only

Flags: prerelease_only

Adoption not part of the score

2775 stars · 233 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

WAVM is a WebAssembly virtual machine designed for non-browser applications, using LLVM to JIT-compile WebAssembly to near-native machine code. It supports WebAssembly 1.0 plus extensions like WASI, SIMD, threads, and exception handling, with sandboxing to isolate untrusted code.

Use cases

• run webassembly modules outside the browser
• embed a wasm runtime in a native application
• sandbox untrusted code with webassembly
• execute WASI programs on the command line
• jit compile wasm to native code with llvm

When to choose

• you need a fast, near-native WebAssembly runtime for server or embedded host applications
• you want WASI, SIMD, threads, or exception-handling support in a standalone VM
• you need to safely isolate plugin code inside a C++ application

When to avoid

• you only need WebAssembly in a web browser
• you require strong protection against side-channel attacks like Spectre
• you need a 32-bit host runtime
• you need a lightweight interpreter rather than a JIT with an LLVM dependency

Facets

library · maturity active

interpreter compiler developer-tools programming-languages compilers cpp windows cross-platform webassembly wasm-runtime llvm-jit wasi virtual-machine sandboxing linux macos

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