An AWS emulator that mimics AWS features on your own computer so you can test without an AWS account(github.com)

- AWS Emulator is a program that mimics AWS APIs (the request format programs use to talk to each other) on your own computer. You can test code on a development PC, a development server, or CI (an automated test environment) without calling real AWS. - According to the README, no AWS account is needed and there is no extra charge for the emulator itself. If you point the address that the AWS CLI or SDK uses to the emulator through an environment variable, your code runs as usual. - On Linux, it runs from an RPM or Debian package. On Windows and Mac, it runs as a Docker container. For Rust tests, there is also an embedded mode that you put inside your program and run separately for each test. - It is said that fidelity scores, showing how closely each service resembles real AWS, are published on the releases page. Features that do not work yet are listed in the issues folder of the repository.