Extend and customize your API infrastructure with tooling for WebAssembly, plugins, and operators

BUILD
Dynamically build, maintain, add, or modify custom filters in your choice of language
PUBLISH
Store and share Wasm extensions privately or publicly with the community
DISCOVER
Search, browse, download, and add Wasm Envoy extensions
DEPLOY
Install extensions to Envoy-based systems including Gloo Edge and Istio

Get Started with WebAssembly Hub

WebAssembly makes customizing Envoy Proxy more accessible to developers who aren't comfortable with C++. Try WebAssembly Hub's simple yet powerful experience in building extensions, publishing them, and sharing with the community.

Watch the Tutorials Read the Article

Features

Gloo Extensions include developer and operator tooling like wasme CLI, WebAssembly Hub, plugins, and operators to extend the Gloo API infrastructure platform and other Envoy Proxy-based solutions like Istio.

Developer Experience

Intuitive and easy to use experience for WebAssembly

Module Registry

Store and share in the cloud or deploy in your network

Any Language

Multi-language support with C++, Rust, AssemblyScript, and TinyGo

GitOps Integration

Declarative CRD automatically deploys and configures filters to Envoy proxies running inside of a Kubernetes cluster

Cloud- Native

Customize filters for Envoy Proxy and Envoy-based solutions like Gloo Edge and Istio

Industry Standards

OCI Image specification for WASM modules

Istio Support

Dynamically load wasm modules to customize Istio service mesh environments

Gloo Edge Support

Dynamically load Wasm modules to customize edge gateway behavior

Try WebAssembly Hub

Browse Hub

Build an Extension

Start Building

WebAssembly Hub Workflow

WebAssembly Hub provides everything you need to build, publish, discover and deploy custom extensions for Envoy Proxy, Gloo and Istio.