Backstage is an open-source platform initially developed by Spotify to build and manage Developer Portals, which serve as a unified, self-service layer for developers to access tools and information needed for efficient workflow. The platform allows for the creation of visualization and self-service layers, enhancing developer experience by consolidating DevOps assets, services, and resources into a single interface. Key features of Backstage include a Service Catalog for managing software metadata, TechDocs for integrated documentation, and a Kubernetes plugin for streamlined deployment monitoring. While Backstage provides a flexible framework through plugins, it requires significant customization and UI development skills to tailor the portal to specific organizational needs, making it more suited for teams with experienced DevOps engineers. Despite its benefits, such as improving productivity and attracting talent, Backstage may not fit every company's requirements and involves a learning curve for effective implementation.