CloudFormation is an Amazon Web Services tool that allows users to easilycreate and manage infrastructure deployments in a predictable andrepeatable manner. With CloudFormation, you can utilize various AWSproducts like EC2, EBS, SNS, ELB, and Auto Scaling to build reliable andscalable applications without needing to manually configure the underlyinginfrastructure. By declaring resources and their dependencies in atemplate file, CloudFormation organizes them into a stack, enablingseamless creation and deletion of all resources within the stack whilemanaging dependencies between them.