Awesome

Awesome WebAssembly Runtimes

This repo contains a list of virtual machines and tools that execute the WebAssembly(wasm) format and/or compile it to executable machine code :octocat:

Legend

:rocket: - Active development</br> :sleeping: - Unmaintained (been more than a year since last commit)</br>

CONTENTS

• aWsm ^{^:rocket:}</br>
• CMM of Wasm ^{^:sleeping:}</br>
• EOSVM ^{^:rocket:}</br>
• Extism ^{^:rocket:}</br>
• FDVM ^{^:sleeping:}</br>
• Fizzy ^{^:rocket:}</br>
• GraalWASM ^{^:rocket:}</br>
• Happy New Moon With Report ^{^:rocket:}</br>
• inNative ^{^:rocket:}</br>
• Life ^{^:sleeping:}</br>
• Lucet ^{^:rocket:}</br>
• wasm3 ^{^:rocket:}</br>
• Motor ^{^:sleeping:}</br>
• py-wasm ^{^:sleeping:}</br>
• Serverless Wasm ^{^:sleeping:}</br>
• Swam ^{^:rocket:}</br>
• VMIR ^{^:sleeping:}</br>
• wac ^{^:sleeping:}</br>
• Wagon ^{^:sleeping:}</br>
• WAKit ^{^:rocket:}</br>
• Warpy ^{^:sleeping:}</br>
• WasmEdge ^{^:rocket:}</br>
• Wasmer ^{^:rocket:}</br>
• Wasmi ^{^:rocket:}</br>
• Wasmo ^{^:rocket:}</br>
• WasmRT ^{^:sleeping:}</br>
• Wasmtime ^{^:rocket:}</br>
• WasmVM ^{^:rocket:}</br>
• WasmVM ^{^:sleeping:}</br>
• WAVM ^{^:rocket:}</br>
• WebAssembly ^{^:sleeping:}</br>
• WebAssembly Micro Runtime ^{^:rocket:}</br>
• Wizard Research Engine ^{^:rocket:}</br>
• TWVM ^{^:rocket:}</br>
• wazero ^{^:rocket:}</br>

<a name="awsm"></a>aWsm ^top⇈

aWsm is a compiler and runtime for compiling WebAssembly (Wasm) code into llvm bytecode, then into sandboxed binaries you can run on various platforms.

• Languages written in

  <table> <tr> <td>Rust</td> <td>C</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>AOT</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>C</td> </tr> </table>

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> </tr> </table>

<a name="cmm"></a>CMM of Wasm ^top⇈

A compiler from WebAssembly to native code, via the OCaml backend.

• Languages written in

  <table> <tr> <td>OCaml</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>OCaml Compiler</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>AOT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> </tr> </table>

<a name="eosvm"></a>EOSVM ^top⇈

EOS VM is designed from the ground up for the high demands of blockchain applications which require far more from a WebAssembly engine than those designed for web browsers or standards development.

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="extism"></a>Extism ^top⇈

Extism's goal is to make all software programmable, and is a flexible, embedded runtime to make it easy to extend your software with WebAssembly.

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  SDKs to execute WebAssembly in:

  • Browser
  • C
  • C++
  • .NET
  • Elixir
  • Go
  • Haskell
  • Java
  • Node
  • OCaml
  • PHP
  • Python
  • Ruby
  • Rust
  • Zig

  PDKs to create WebAssembly plug-ins in:

  • Rust
  • JavaScript
  • Go
  • Haskell
  • AssemblyScript
  • C
  • C++
  • Zig

• Host APIs supported

  • module loading & linking via Manifest
  • WASI
  • non-WASI http_request

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="fdvm"></a>FDVM ^top⇈

WASM runtime to develop server-side WebAssembly applications.

• Languages written in

  <table> <tr> <td>JavaScript</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>NodeJS(V8)</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="fizzy"></a>Fizzy ^top⇈

Fizzy aims to be a fast, deterministic, and pedantic WebAssembly interpreter written in C++.

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  • N/A

• Compilation / Execution modes

  <table> <tr> <td>Interpreter</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  <table> <tr> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> </tr> </table>

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> </tr> </table>

<a name="graalwasm"></a>GraalWasm ^top⇈

GraalWasm is a WebAssembly engine implemented in the GraalVM. It can interpret and compile WebAssembly programs in the binary format, or be embedded into other programs.

• Languages written in

  <table> <tr> <td>Java</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>GraalVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>Java</td> <td>JVM</td> <td>Graal supported languages</td> </tr> </table>

• Non-MVP features supported

  <table> <tr> </tr> </table>

• Host APIs supported

  <table> <tr> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> </tr> </table>

• Used by

  • GraalVM JavaScript - A high performance implementation of the JavaScript programming language.

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="happy-new-moon-with-report"></a>Happy New Moon With Report ^top⇈

Happy New Moon with Report is an open-source implementation of WebAssembly written entirely in Java. It is used to run or test Web Assembly Modules (*.wasm) in Java.

• Languages written in

  <table> <tr> <td>Java</td> </tr> </table>

• Compiler framework

  • N/A

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>Java</td> <td>JVM languages</td> </tr> </table>

• Non-MVP features supported

  <table> <tr> <td>Sign Extensions</td> </tr> </table>

• Host APIs supported

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>JVM</td> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="innative"></a>inNative ^top⇈

An AOT (ahead-of-time) compiler for WebAssembly that creates C compatible binaries, either as sandboxed plugins you can dynamically load, or as stand-alone executables that interface directly with the operating system.

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>AOT</td> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  <table> <tr> <td>Threads</td> <td>Multiple Result and Block Parameters</td> <td>Name Section</td> <td>Bulk Memory Operations</td> <td>Sign Extension Instructions</td> <td>Non-trapping Conversion Instructions</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>Custom</td> </tr> </table>

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="life"></a>Life ^top⇈

Life is a secure & fast WebAssembly VM built for decentralized applications, written in Go by Perlin Network.

• Languages written in

  <table> <tr> <td>Go</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="lucet"></a>Lucet ^top⇈

Lucet is a native WebAssembly compiler and runtime. It is designed to safely execute untrusted WebAssembly programs inside your application.

NOTE: Lucet is now in maintenance mode. Work has been moved to wasmtime.

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Cranelift</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>AOT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  <table> <tr> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> </tr> </table>

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> </tr> </table>

<a name="wasm3"></a>Wasm3 ^top⇈

🚀 A high performance WebAssembly interpreter

• Languages written in

  <table> <tr> <td>C</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>Python</td> <td>C/C++</td> <td>Rust</td> <td>Go</td> <td>Zig</td> <td>Swift</td> <td>C#/.Net</td> </tr> </table>

• Non-MVP features supported

  <table> <tr> <td>Multi-Value</td> <td>Bulk Memory Operations</td> <td>Sign-extension operators</td> <td>Non-trapping conversions</td> <td>Name Section</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>WASI</td> <td>Custom</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> <td>Gas Metering</td> </tr> </table>

• Used by

  • wasmcloud - A platform for writing portable business logic
  • Shareup - Fast, private sharing for everyone
  • WowCube - An nnovative console and the gaming platform
  • txiki.js -A small and powerful JavaScript runtime

• Platforms supported

  <table> <tr> <td>Windows</td> <td>Linux<br/>(any arch)</td> <td>macOS<br/>(any arch)</td> <td>FreeBSD<br/>(any arch)</td> <td>Android</td> <td>OpenWRT</td> <td>SBC/MCU</td> <td>Arduino</td> </tr> </table>

<a name="motor"></a>Motor ^top⇈

Motor is a WebAssembly runtime, which aims for secure and efficient execution of WebAssembly programs

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Dynasm</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> </tr> </table>

<a name="py-wasm"></a>py-wasm ^top⇈

A python implementation of the WebAssembly interpreter

• Languages written in

  <table> <tr> <td>Python</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="serverless-wasm"></a>Serverless wasm ^top⇈

A small demo of Web Assembly's potential outside of browsers

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Wasmi</td> <td>Cranelift</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="swam"></a>Swam ^top⇈

WebAssembly engine in Scala

• Languages written in

  <table> <tr> <td>Scala</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="vmir"></a>VMIR ^top⇈

VMIR is a standalone library written in C that can parse and execute WebAssembly and LLVM Bitcode files

• Languages written in

  <table> <tr> <td>C</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A
  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wac"></a>wac ^top⇈

A Minimal WebAssembly interpreter written in C.

• Languages written in

  <table> <tr> <td>C</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wagon"></a>wagon ^top⇈

Wagon is a WebAssembly-based interpreter in Go, for Go.

• Languages written in

  <table> <tr> <td>Go</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wakit"></a>WAKit ^top⇈

A WebAssembly runtime written in Swift.

• Languages written in

  <table> <tr> <td>Swift</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> </tr> </table>

<a name="warpy"></a>Warpy ^top⇈

WebAssembly interpreter in RPython.

• Languages written in

  <table> <tr> <td>RPython</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>RPython</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wasmedge"></a>WasmEdge ^top⇈

A lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications. Project under CNCF.

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreter</td> <td>AOT</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>Solidity</td> <td>Rust</td> <td>C/C++</td> <td>Go/TinyGo</td> <td>JavaScript</td> <td>Python</td> <td>Grain</td> <td>Swift</td> <td>Zig</td> <td>Ruby</td> </tr> </table>

• Non-MVP features supported

  <table> <tr> <td>Bulk Memory Operations</td> <td>SIMD</td> <td>Multi-Memory</td> <td>Multi-Value</td> <td>Reference Types</td> <td>Sign Extension Instructions</td> <td>Non-Trapping Float-to-Int Conversions</td> <td>Mutable Global</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>WASI</td> <td>Networking Socket</td> <td>TensorFlow</td> <td>Command Interface</td> <td>Image Processing</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> <td>Gas Metering</td> <td>Ethereum Environment Interface</td> <td>Oasis</td> <td>Substrate</td> </tr> </table>

• Used by

  • Suborbital
  • crun
  • SuperEdge
  • OpenYurt
  • Dapr
  • Yomo
  • Oasis ETH ParaTime

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> <td>Android</td> <td>OpenHarmony</td> <td>seL4 RTOS</td> </tr> </table>

<a name="wasmer"></a>Wasmer ^top⇈

Wasmer is a standalone WebAssembly runtime for running WebAssembly outside of the browser, supporting WASI and Emscripten.

• Languages written in

  <table> <tr> <td>Rust</td> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Singlepass</td> <td>Cranelift (Default)</td> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> <td>AOT</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>Rust</td> <td>PHP</td> <td>C</td> <td>C++</td> <td>Python</td> <td>Go</td> <td>PHP</td> <td>Java</td> <td>Ruby</td> <td>Postgres</td> <td>C#/.Net</td> <td>Elixir</td> <td>R</td> <td>D</td> <td>Swift</td> </tr> </table>

• Non-MVP features supported

  <table> <tr> <td>Threads</td> <td>SIMD</td> <td>Multi Value returns</td> <td>Name Section</td> <td>Bulk Memory Operations</td> <td>Sign Extension Instructions</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>Emscripten</td> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> <td>wasm-c-api</td> </tr> </table>

• Used by

  • Spacemesh Virtual Machine - A Spacemesh smart contracts vm
  • CosmWasm - A Cosmos-compatible library for running wasm smart contracts
  • NEAR Protocol - The reference client for NEAR protocol
  • Dprint - Pluggable and configurable code formatting platform

• Platforms supported

  <table> <tr> <td>Linux (x64, aarch64, x86)</td> <td>macOS (x64, arm64)</td> <td>Windows (x64, x86)</td> <td>FreeBSD (x64)</td> <td>Android</td> </tr> </table>

<a name="wasmi"></a>Wasmi ^top⇈

A Wasm interpreter.

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  <table> <tr> <td>Mutable Globals</td> <td>Sign-extension operators</td> <td>Non-trapping conversions</td> <td>Multi-Value</td> <td>Bulk Memory Operations</td> <td>Reference Types</td> <td>Tail Calls</td> <td>Extended Const</td> </tr> </table>

• Host APIs supported

  • N/A

• Non-web standards

  <table> <tr> <td>WASI</td> </tr> </table>

• Used by

  <table> <tr> <td>Substrate</td> <td>smoldot</td> <td>Ayaka Game Engine</td> </tr> </table>

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> <td>WebAssembly</td> </tr> </table>

<a name="wasmo"></a>Wasmo ^top⇈

A WebAssembly Runtime and Compiler based on LLVM.

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>macOS</td> </tr> </table>

<a name="wasmrt"></a>wasmrt ^top⇈

wasmrt is a runtime built for native execution of WebAssembly modules (virtualized at first, eventually JIT).

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wasmtime"></a>Wasmtime ^top⇈

Wasmtime is a standalone wasm-only runtime for WebAssembly, using the Cranelift JIT

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Cranelift</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  <table> <tr> <td>Python</td> </tr> </table>

• Non-MVP features supported

  <table> <tr> <td>Interface types</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> <td>wasm-c-api</td> </tr> </table>

• Used by

  • Wasmi: an efficient WebAssembly interpreter that is used by Substrate, a next-generation framework for blockchain innovation.

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wasmvm1"></a>WasmVM ^top⇈

An unofficial standalone WebAssembly process virtual machine

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wasmvm2"></a>wasmvm ^top⇈

WebAssembly Virtual Machine, which aim to fit embedded systems.

• Languages written in

  <table> <tr> <td>Rust</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Life</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wavm"></a>WAVM ^top⇈

WebAssembly Virtual Machine, which aim to fit embedded systems.

• Languages written in

  <table> <tr> <td>C++</td> <td>Python</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>LLVM</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  <table> <tr> <td>Threads</td> <td>SIMD</td> <td>Multiple Result and Block Parameters</td> <td>Exception Handling</td> <td>Name Section</td> <td>Reference Types</td> <td>Bulk Memory Operations</td> <td>Sign Extension Instructions</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>WASI</td> <td>Emscripten</td> <td>WAVIX</td> </tr> </table>

• Non-web standards

  • WASI

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="webassembly"></a>webassembly ^top⇈

An experimental, minimal toolkit and runtime on top of node to produce and run WebAssembly modules

• Languages written in

  <table> <tr> <td>JavaScript</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>NodeJS(V8)</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wamr"></a>WAMR ^top⇈

WebAssembly Micro Runtime (WAMR) is a standalone WebAssembly (WASM) runtime with small footprint

• Languages written in

  <table> <tr> <td>C</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> <td>AOT-Modules</td> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • Non-trapping float-to-int conversions
  • Sign-extension operators
  • Bulk memory operations
  • Shared memory
  • Multi-value
  • Tail-call

• Host APIs supported

  • wasm-c-api

• Non-web standards

  • WASI

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> <td>AliOS-Things</td> <td>Android</td> <td>Linux-SGX</td> <td>Nuttx</td> <td>VxWorks</td> <td>Zephyr</td> </tr> </table>

<a name="twvm"></a>TWVM ^top⇈

A tiny and efficient WebAssembly virtual machine.

• Languages written in

  <table> <tr> <td>C++</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  • N/A

• Host APIs supported

  • N/A

• Non-web standards

  • N/A

• Used by

  • N/A

• Platforms supported

  <table> <tr> <td>Linux</td> <td>macOS</td> <td>Windows</td> </tr> </table>

<a name="wizard"></a>Wizard ^top⇈

Wizard is a WebAssembly 1.0 and 2.0 spec-compliant runtime written in Virgil, with zero platform dependencies. It features a fast interpreter, baseline compilation, and advanced dynamic analysis.

• Languages written in

  <table> <tr> <td>Virgil</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  <table> <tr> <td>Bulk Memory Operations</td> <td>Import/Export of Mutable Globals</td> <td>Sign-extension operators</td> <td>Multi-Value Returns</td> <td>Name Section</td> <td>Non-trapping float-to-int conversions</td> <td>Reference Types</td> <td>SIMD</td> <td>Tail-call</td> <td>GC</td> <td>Exception Handling</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>Wave</td> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> </tr> </table>

• Used by

• Platforms supported

  <table> <tr> <td>Linux (amd64, x86)</td> <td>macOs (amd64)</td> <td>Java (java5)</td> <td>Wasm 1.0</td> </tr> </table>

<a name="wazero"></a>wazero ^top⇈

wazero is a WebAssembly 1.0 and 2.0 spec compliant runtime written in Go, with zero platform dependencies.

• Languages written in

  <table> <tr> <td>Go</td> </tr> </table>

• Compiler framework

  <table> <tr> <td>Custom</td> </tr> </table>

• Compilation / Execution modes

  <table> <tr> <td>Interpreted</td> <td>JIT</td> </tr> </table>

• Interoperability with other languages

  • N/A

• Non-MVP features supported

  <table> <tr> <td>Bulk Memory Operations</td> <td>Import/Export of Mutable Globals</td> <td>Sign-extension operators</td> <td>Multi-Value Returns</td> <td>Name Section</td> <td>Non-trapping float-to-int conversions</td> <td>Reference Types</td> <td>SIMD</td> </tr> </table>

• Host APIs supported

  <table> <tr> <td>AssemblyScript</td> <td>WASI</td> </tr> </table>

• Non-web standards

  <table> <tr> <td>WASI</td> </tr> </table>

• Used by

  • dapr - APIs that simplify microservice connectivity
  • trivy - vulnerability/misconfiguration/secret scanner for containers and other artifacts
  • wapc-go - WebAssembly Host Runtime for waPC-compliant modules

• Platforms supported

  <table> <tr> <td>FreeBSD (amd64)</td> <td>Linux (amd64, arm64, riscv64)</td> <td>macOs (amd64)</td> <td>Windows (amd64)</td> </tr> </table>

License

To the extent possible under law, Steve Akinyemi has waived all copyright and related or neighboring rights to this work.