CaptureKit, accessible at https://www.capturekit.dev, is a software tool designed to assist developers in recording and documenting user interactions within their applications. It provides a streamlined process to capture, analyze, and share session replays and user behavior insights, which can be invaluable for debugging and enhancing user experience. CaptureKit is aimed at reducing the complexity associated with collecting user interaction data, making it easier for development teams to understand user behavior and improve application performance.