What is self-workerd?

self-workerd is a proof-of-concept Function as a Service platform you can run on your own infrastructure. It uses workerd, the V8-based JavaScript runtime behind Cloudflare Workers, to execute functions in isolated environments. The system has two components: a Publisher (Node.js API server) that receives, validates, and stores function definitions, and Workers that fetch the configuration and run workerd to execute functions. Functions are JavaScript ESModules with a fetch handler. Requests are routed by URL path. You can run it locally with pnpm or deploy via Docker on any container platform. The guide covers Fly.io deployment with auto-scaling. Licensed MIT, version 0.0.1.

Should you self-host self-workerd?

self-workerd scores 36/100 on selfhost.directory (how scoring works) and ranks #6 of 7 in Serverless. It has 141 GitHub stars.

There was no stable release in the past 12 months, so check the repository's recent activity before you rely on it.

Setup is advanced: plan for several services and some ongoing maintenance. It is MIT-licensed and written mostly in Typescript.

Its closest alternative on selfhost.directory is faas (68/100, 26 253 stars). It scores higher overall, so compare the two before you pick. See self-workerd vs faas side by side.