I've spent the past year migrating parts of our cloud infrastructure to WebAssembly (Wasm), and the results have been genuinely surprising. Here's what I've learned and why I believe Wasm is the most important shift in cloud computing since containers.

The Wasm Promise

When people talk about WebAssembly, they usually mention running code in the browser at near-native speed. That's the old story. What's happening in 2026 is something far more interesting: WebAssembly is becoming the universal runtime for cloud infrastructure.

The core idea is simple: Wasm provides a portable, sandboxed, and fast execution environment that can run anywhere — edge nodes, serverless functions, microservices, even embedded devices. And unlike containers, it starts in microseconds, not milliseconds.

What Changed in 2026?