React Konva is a Node package that simplifies canvas manipulation by providing built-in shapes and animation features, allowing developers to create interactive canvases without extensive manual calculations. Users can draw basic shapes such as rectangles, circles, and polygons using components like Stage, Layer, and specific shape components, with simple props controlling aspects like position, size, and appearance. Custom shapes can be created using the Shape component with a sceneFunc prop, and event handling allows shapes to be made draggable, with transformations achieving resizing similar to photo editing software by using the Transformer component. Additionally, React Konva supports adding images to canvases with effects like blurring through its Image component and built-in filters, while basic animations can be applied to actions such as dragging. Overall, React Konva makes it easier to manage complex canvas operations compared to using plain JavaScript.