konva

Konva is a JavaScript library for creating 2D graphics on HTML5 Canvas. It provides an object-oriented API that simplifies the process of drawing shapes, images, and text. Konva manages the canvas layer, making it easier to handle complex scenes and animations.

The library offers a declarative approach to defining visual elements. Instead of directly manipulating the canvas context, developers create Konva objects like Rect, Circle, Image, and Text, and then add them to a Konva Stage. This abstraction allows for features like event handling on individual shapes, layering, and transformations such as rotation and scaling.

Konva supports a variety of features essential for interactive graphics, including mouse and touch event listeners attached to shapes, animations using requestAnimationFrame, and the ability to export the canvas content as an image. It also provides tools for creating custom shapes and effects.

The library is widely used for building interactive user interfaces, data visualizations, games, and image editing applications. Its performance is optimized for rendering complex graphics efficiently. Konva is open-source and available under the MIT license, with a community that contributes to its development and support.