
WebAssembly Escaped the Browser. Now It's Running Inside Shopify, Cloudflare, and Your Kubernetes Cluster.
WebAssembly was designed as a fast, safe execution format for web browsers. Six years later, it's the runtime powering Shopify's third-party checkout logic, Fastly's edge compute platform, and functions deployed inside Kubernetes clusters. WASM 3.0 became a W3C standard in September 2025. The question is no longer whether WASM works outside the browser — it's why you would choose it over a container.









