WasmEdge

Bring the cloud-native and serverless application paradigms to Edge Computing.

(module
(type (;0;) (func (param i32) (result i32)))
(func $fib (type 0) (param $n i32) (result i32)
	local.get $n
	i32.const 2
	i32.lt_s
	if  ;; label = @1
		i32.const 1
		return
	end
	local.get $n
	i32.const 2
	i32.sub
	call $fib
	local.get $n
	i32.const 1
	i32.sub
	call $fib
	i32.add
	return)
(export "fib" (func $fib)))

WasmEdge is a lightweight, high-performance, and extensible WebAssembly runtime for cloud native, edge, and decentralized applications.

It powers serverless apps, embedded functions, microservices, smart contracts, and IoT devices.

Let's get started

1. Install WasmEdge with an one-line command:

curl -sSf https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/utils/install.sh | bash

2. Create an app or function for WasmEdge in:

C Rust Go JavaScript Python

3. Embed the WasmEdge function into your host app written in:

C Rust Go Java Python

Compared with Linux containers, WasmEdge could be 100x faster at start-up and 20% faster at runtime.

A WasmEdge app could take 1/100 of the size of a similar Linux container app.

Network sockets
Async processing
Tensorflow inference
Key-value stores
Database connectors
Gas meters

ES6 module and std API support
Node and NPM module API support
React SSR streaming
Implement JS APIs in Rust
Much lighter than containerized v8

Container tooling support
Kubernetes ecosystem support
Data plane plug-ins
Sidecar apps in service meshes
Dapr microservices

Linux
Mac OS X
Windows
Microkernel and RTOS
Intel x86, ARM, and M1 CPUs

Build WasmEdge extensions in C++.

Build customized WasmEdge runtimes with native host functions in C, Go and Rust.

Embed WasmEdge functions in C, Go, Rust, Node.js and Python host applications.

Embed functions in cloud and edge native application platforms and frameworks.

High-performance

Compared with Linux containers, WasmEdge could be 100x faster at start-up and 20% faster at runtime.

A WasmEdge app could take 1/100 of the size of a similar Linux container app.

WASI-like Extensions

Network sockets
Async processing
Tensorflow inference
Key-value stores
Database connectors
Gas meters

JavaScript Support

ES6 module and std API support
Node and NPM module API support
React SSR streaming
Implement JS APIs in Rust
Much lighter than containerized v8

Cloud Native Management & Orchestration

Container tooling support
Kubernetes ecosystem support
Data plane plug-ins
Sidecar apps in service meshes
Dapr microservices

Cross-platform Support

Linux
Mac OS X
Windows
Microkernel and RTOS
Intel x86, ARM, and M1 CPUs

Easy Extensibility

Build WasmEdge extensions in C++.

Build customized WasmEdge runtimes with native host functions in C, Go and Rust.

Easy to Embed into a Host Application

Embed WasmEdge functions in C, Go, Rust, Node.js and Python host applications.

Embed functions in cloud and edge native application platforms and frameworks.

WasmEdge provides a lightweight, fast, safe and portable alternative to Linux containers in cloud native and edge native environments.

News & Events

Feb 02, 2022
WasmEdge 0.9.1 is released: This release features integrated high-performance networking, JavaScript streaming SSR and Fetch API support, a new bindgen framework, Android and OpenHarmony OS support, expanded Kubernetes support, and improved memory management.; Learn more; Oct 24, 2022
Docker Launched WebAssembly Support with WasmEdge: In the Cloud native Wasm day event at KubeCon NA 2022, Docker announced Docker+Wasm technical preview in partnership with CNCF’s Wasm runtime WasmEdge. With a single command, docker compose up, Docker developers can instantly build, share, and run a complete Wasm application.; Learn more; Oct 9, 2021
A lightweight, safe, portable, and high-performance runtime for Dapr: Using WasmEdge as a sidecar application runtime for Dapr.; Learn more