Today, we’re announcing AWS Lambda Web Functions, a new form factor that lets you run standard HTTP web applications on Lambda without rewriting your code into an event handler. You can take a standard port-listening server built with Express, Hono, Fastify, Next.js, or any Node.js framework, deploy it with a single command, and Lambda automatically handles scaling, multi-region distribution, and active CPU billing. No adapters, no infrastructure to manage, and no framework lock-in.
With this launch, AWS Lambda now offers three distinct form factors, each built on the same Firecracker isolation technology and designed for a different programming model.
Lambda Event Functions are what you already know as Lambda functions. They use the event-driven, single-concurrent handler model with wall-clock billing. We’re introducing…