In this chapter, we will explore Kubernetes manifest management tools—Helm and Kustomize—which simplify and streamline the deployment of complex applications. We will learn how Helm uses templating and charts to package, configure, and version Kubernetes resources, making it ideal for managing reusable and shareable application definitions. Kustomize, on the other hand, takes a patch-based, declarative approach that enables you to customize YAML manifests without duplication.