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Wasmer is a standalone WebAssembly runtime:

• Universal: Wasmer is available in Linux, macOS and Windows (for both Desktop and ARM)
• Fast: Wasmer aims to run WebAssembly at near-native speed
• Pluggable: Wasmer can be used from almost any programming language
• Safe: supporting WASI and Emscripten

It is used to run software fast, universally and safely: standalone applications and universal libraries.

Quickstart

1. Install Wasmer (more installation methods are also available)

curl https://get.wasmer.io -sSfL | sh

With PowerShell

iwr https://win.wasmer.io -useb | iex

2. Use Wasmer

Download a WASM file, and use it universally! You can start with QuickJS: qjs.wasm

wasmer qjs.wasm

3. Next steps

Here is what you can do next:

• Use Wasmer from your Rust application
• Publish a Wasm package on WAPM
• Read more about Wasmer

Language Integrations

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

|   | Language | Package | Docs | | | Rust | wasmer Rust crate | Docs | | C/C++ | wasmer.h headers | Docs | | | C# | WasmerSharp NuGet package | Docs | | | Python | wasmer PyPI package | Docs | | | Javascript | @wasmerio NPM packages | Docs | | | Go | wasmer Go package | Docs | | | PHP | wasm PECL package | Docs | | | Ruby | wasmer Ruby Gem | Docs | | | Java | wasmer/wasmer-jni Bintray package | Docs | | | Elixir* | Docs | | | R | Docs | | | Postgres | | 👋 Missing a language? |

Contribute

We welcome any form of contribution, especially from new members of our community 💜

You can check how to build the Wasmer runtime in our awesome docs!

Testing

Test you want? The Wasmer docs will show you how.

Community

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

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