Skip to main content


Javascript SDK and CLI for Fastly Compute

Service Worker API

Applications are written using the same Service Worker API that is used for browsers. Aiming to make it simpler to re-use code across different environments.

Powered by SpiderMonkey

Built using the same secure, well-tested, standards-compliant JavaScript engine which powers Mozilla's Firefox.

Open source

Want to see behind the curtains?
View the GitHub Repository.
Your contributions are welcomed and appreciated.