Leveraging WebAssembly in Cloudflare Workers at the Edge

Mon, 05 Jan 2026 00:00:00 +0900

Introduction

Cloudflare Workers revolutionized serverless computing by bringing code execution to the network edge — over 330 locations worldwide. By integrating WebAssembly (Wasm) modules into Workers, you can run computationally intensive tasks (image processing, cryptography, video encoding, scientific calculations) at near-native speeds while maintaining the low-latency benefits of edge distribution. This article explores how to compile languages like Rust and AssemblyScript to Wasm, deploy them on Workers, and the performance trade-offs involved.

WebAssembly for Browser Applications: Beyond the Hype

Sat, 30 Nov 2024 00:00:00 +0900

Introduction

WebAssembly has matured from a niche curiosity into a production-ready tool for browser-based applications. While early demos focused on gaming engines and scientific simulations, today Wasm is used in image editors, video transcoders, compression libraries, and cryptographic utilities — all running in the browser at near-native speed.

The key shift in 2024 is ecosystem maturity. WasmGC ships in Chrome 119+, SIMD is available across all major browsers, and reference types allow passing DOM nodes directly into Wasm modules. This article cuts through the hype to examine realistic use cases, compile-target decisions, memory management strategies, and integration patterns for production applications.

Wasm on Commentary of Takao

Leveraging WebAssembly in Cloudflare Workers at the Edge

Introduction

WebAssembly for Browser Applications: Beyond the Hype

Introduction