localstack

Supports a wide range of AWS services like Lambda, S3, DynamoDB, Kinesis, SQS, and SNS locally, enabling offline development as highlighted in the README.

Can be run via CLI, Docker, Docker Compose, or Helm, providing adaptability for different setups, as mentioned in the Key Features section.

Seamlessly integrates into continuous integration environments for automated testing, speeding up development workflows according to the README.

Offers Web Application, Desktop, and Docker Extension UIs, enhancing usability beyond command-line tools, as noted in the Usage section.

Enables testing without internet connectivity, reducing cloud costs and latency, which is a core value proposition in the Overview.