What is images with transparent background called?

PNG images:

PNG stands for Portable Network Graphics, and an image with a transparent background is referred to as a PNG image. PNG images are commonly used for web graphics, logos, and icons, as they allow for transparency and crisp, high-quality images. The transparency feature allows the background of the image to be removed or replaced, making them versatile and easy to use across various backgrounds and designs. PNG images can also handle complex images and provide better compression, making them ideal for images that require a small file size but maintain high quality. PNG images can be created using various tools, including Adobe Photoshop, GIMP, and online image editing tools.