Loader animations are a crucial part of modern user interfaces. You often see them when an application is fetching data, processing a request, or preparing content for display. Without a loader, users may be left wondering if the app is broken or unresponsive. A well-designed loader provides visual feedback, reassures users that progress is happening, and can even add a touch of personality to your brand.

Common animation patterns for loaders include looping effects such as spinning shapes, bouncing dots, or pulsing elements. These patterns are effective because they clearly signal ongoing activity and can be easily recognized across different platforms and devices.