aws-emulator
aws-emulator
AWS has released aws-emulator, an official emulator that clones and runs several of its services locally for testing, with no need to provision paid API keys. The project is written in Rust and was built largely by agents, generating 29,684 commits in its first three weeks; Swami Sivasubramanian described its origins in a post on Werner Vogels' blog.
11th November 2026 - Link Blog
aws-emulator. Finally, an official emulator from AWS to run tests against a local clone of their many different services without having to provision a paid API key to do so.
It's written in Rust by a huge swarm of agents - 29,684 commits in the first three weeks of the project. Swaminathan (Swami) Sivasubramanian wrote about how it came to be in a guest post on Werner Vogels' blog.
It currently requires Docker to run on macOS or Windows. I'm hoping they fix that in the future - it would be great if you could download a single binary and use that as part of a standard test suite in other languages and on other platforms.
Source: Simon Willison · simonwillison.net