cloudflare/workerd

The JavaScript / Wasm runtime that powers Cloudflare Workers

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What it does

Workerd is a JavaScript/Wasm runtime designed for server applications, offering a robust environment for developing and hosting Cloudflare Workers locally or as part of a cluster, emphasizing security and performance.

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Tracking

Last trending: 2026-04-25

Creator kit

Hook

Transform your server-side development with Workerd - the JavaScript/Wasm runtime that powers Cloudflare Workers. Dive into a world of high performance and security!

Content angles

Exploring the design principles behind Workerd for building secure, scalable applications.
A hands-on guide to setting up and using Workerd for local development and testing of Cloudflare Worker scripts.
Comparing Workerd's capabilities with other serverless runtimes in terms of performance and security.

Who should care

Developers interested in server-side JavaScript, WebAssembly, and cloud-native applications