Feature flags (also known as feature toggles) are a powerful technique to manage feature rollouts and experiments within an application. They allow you to enable or disable features without deploying new code. This article delves into how you can implement feature flag management in your Spring Boot application using Togglz, a feature toggle library for Java. We'll explore integrating Togglz via API calls and a user interface, enabling efficient management of features at runtime. By following this guide, you can manage your application's features more effectively and provide a better user experience.