Wasmer is a blazing fast and secure WebAssembly runtime that enables incredibly lightweight containers to run anywhere: from Desktop to the Cloud, Edge and your browser.

• Secure by default. No file, network, or environment access, unless explicitly enabled.
• Pluggable. supports WASIX, WASI and Emscripten out of the box.
• Incredibly Fast. Run WebAssembly at near-native speeds.
• Embeddable anywhere via Wasmer SDKs

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

Note: You can also try Wasmer online in wasmer.sh

You can start by running Cowsay:

$ wasmer run cowsay "hello world"
 _____________
< hello world >
 -------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
               ||----w |
                ||     ||

There are many more available packages, such as wasmer/python or quickjs. Create your own package, or explore packages from the community: https://wasmer.io/explore

• Run a package
• Publish a package
• Deploy your website
• Read more about Wasmer

You can use the Wasmer runtime embedded in different languages with the Wasmer SDK:

	Language	Package	Documentation
	Rust	wasmer Rust crate	Learn
	C	wasm.h header	Learn
	C++	wasm.hh header	Learn
	C#	WasmerSharp NuGet package	Learn
	D	wasmer Dub package	Learn
	Python	wasmer PyPI package	Learn
	Javascript	@wasmerio NPM packages	Learn
	Go	wasmer Go package	Learn
	PHP	wasm PECL package	Learn
	Ruby	wasmer Ruby Gem	Learn
	Java	wasmer/wasmer-jni Bintray package	Learn
	R	no published package	Learn
	Postgres	no published package	Learn
	Swift	no published package
	Zig	no published package
	Dart	wasm pub package
	Crystal	no published package	Learn
	Lisp	no published package
	Julia	no published package
	V	no published package
	OCaml	wasmer OCaml package

👋  Missing a language?

We appreciate your help! 💜

We recommend reading the following guide on how to contribute into a complex project successfully: https://mitchellh.com/writing/contributing-to-complex-projects

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

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

• Wasmer Community Discord
• Wasmer on Twitter

README also in: 🇨🇳 中 文 -Chinese • 🇩🇪 Deutsch-German • 🇪🇸 Español-Spanish • 🇫🇷 Français-French • 🇯🇵 日本 語 -Japanese • 🇰🇷 한국어 -Korean.