AWS launched AWS Emulator, a free, open-source Rust tool for locally testing applications against nearly every AWS service.

AWS launched AWS Emulator, a free, open-source local emulator written in Rust. Its stated purpose is to let developers test applications against nearly every AWS service on their own machines.

The tool uses the same command-line interface (CLI) and software development kit (SDK) commands used with AWS. The announcement therefore concerns a local application-testing environment, not additional cloud compute capacity or a new server platform.

AWS says the emulator’s fidelity is measured against real AWS behavior. The supplied description does not enumerate unsupported services, quantify compatibility, or guarantee identical behavior for every operation, so “nearly every service” should not be restated as universal coverage.