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About the developer

wasmerio
10.6K Stars 426 Forks MIT License 10.9K Commits 154 Opened issues

Description

🚀 The leading WebAssembly Runtime supporting WASI and Emscripten

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Wasmer is a fast and secure WebAssembly runtime that enables super lightweight containers to run anywhere: from Desktop to the Cloud, Edge and IoT devices.

This document is also available in: 🇨🇳 中 文 -Chinese🇩🇪 Deutsch-German🇪🇸 Español-Spanish🇫🇷 Français-French🇯🇵 日本 語 -Japanese.

Features

  • Secure by default. No file, network, or environment access, unless explicitly enabled.
  • Supports WASI and Emscripten out of the box.
  • Fast. Run WebAssembly at near-native speeds.
  • Embeddable in multiple programming languages
  • Compliant with latest WebAssembly Proposals (SIMD, Reference Types, Threads, ...)

Install

Wasmer CLI ships as a single executable with no dependencies.

curl https://get.wasmer.io -sSfL | sh
Other installation options (Powershell, Brew, Cargo, ...)

Wasmer can be installed from various package managers. Choose the one that fits best for your environment:

Quickstart

You can start by running QuickJS, a small and embeddable Javascript engine compiled as a WebAssembly module (

qjs.wasm
):

$ wasmer qjs.wasm
QuickJS - Type "\h" for help
qjs > const i = 1 + 2;
qjs > console.log("hello " + i);
hello 3

Here is what you can do next:

📦 Language Integrations

The Wasmer runtime can be used as a library embedded in different languages, so you can use WebAssembly anywhere.

| | Language | Package | Documentation | |-|-|-|-| | Rust logo | Rust |

wasmer
Rust crate | Learn | C logo | C/C++ |
wasmer.h
header
| Learn | | C# logo | C# |
WasmerSharp
NuGet package
| Learn | | D logo | D |
wasmer
Dub package
| Learn | | Python logo | Python |
wasmer
PyPI package
| Learn | | JS logo | Javascript |
@wasmerio
NPM packages
| Learn | | Go logo | Go |
wasmer
Go package
| Learn | | PHP logo | PHP |
wasm
PECL package
| Learn | | Ruby logo | Ruby |
wasmer
Ruby Gem
| Learn | | Java logo | Java |
wasmer/wasmer-jni
Bintray package
| Learn | | Elixir logo | Elixir |
wasmex
hex package
| Learn | | R logo | R | no published package | Learn | | Postgres logo | Postgres | no published package | Learn | | | Swift | no published package | | | Zig logo | Zig | no published package | | | Dart logo | Dart |
wasm
pub package
| | | | Lisp | under heavy development - no published package | |

👋  Missing a language?

Contribute

We appreciate your help! 💜

Check our docs on how to build Wasmer from source or test your changes.

Community

Wasmer has an amazing community of developers and contributors. Welcome, please join us! 👋

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