Amazon CodeCatalyst is a unified software development service that accelerates tooling setup, automates development tasks, and enables seamless collaboration on AWS. It offers project blueprints to quickly define application infrastructure, code repositories, and CI/CD automation. CodeCatalyst's modular design allows integration with third-party tools, while flexible workflows provide robust CI/CD capabilities from the start. Cloud-hosted dev environments integrate with popular IDEs, enabling development from anywhere. The service simplifies application deployment to production and facilitates team collaboration through easy project access and built-in issue management.