Apollo Cache Manager is a Chrome DevTools extension designed for developers working with Apollo Client and GraphQL. This free tool allows users to inspect, mock, and manage cache data in real time, enhancing the development experience. Key features include a Cache Inspector that provides a detailed view of all cache entries, enabling searching, filtering, and editing of entities. Users can modify values inline or through a raw JSON editor, making it easy to manage complex data structures.

In addition to cache inspection, Apollo Cache Manager offers draft editing capabilities, allowing developers to make multiple changes before applying them. Users can save specific cache states as scenarios for easy restoration and sharing with team members. The extension automatically detects Apollo Client instances and supports schema loading through introspection or custom endpoints. Notably, it ensures user privacy by running entirely in the browser without collecting any data.