LocalStack is a tool that simulates AWS services locally for faster development and testing of cloud-native applications.
It emulates key AWS services like S3, DynamoDB, Lambda, API Gateway, SQS, SNS, and more on your machine.
Benefits of using LocalStack include faster feedback loop, offline development, cost efficiency, and safe testing.
Although LocalStack is not a 100% replacement for AWS and lacks full support for all services, it is valuable for development and early testing purposes.