What Is AWS CloudFormation Designer?
AWS CloudFormation Designer (Designer) is a graphic tool for creating, viewing, and modifying AWS CloudFormation templates. With Designer, you can diagram your template resources using a drag-and-drop interface, and then edit their details using the integrated JSON and YAML editor. Whether you are a new or an experienced AWS CloudFormation user, AWS CloudFormation Designer can help you quickly see the interrelationship between a template's resources and easily modify templates.
Designer is part of the AWS CloudFormation console. To use it, open Designer at https://console.aws.amazon.com/cloudformation/designer and sign in with your AWS credentials.