PngImg.com is a large collection of high-quality images of object cutouts on transparent backgrounds ready to be downloaded and used in your next project.
You can easily search for the subject you are looking for and select from the image results your favorite ones for immediate download. No registration or login is required.
100% free.
N.B.: From the notes in the about page of the site it appears as if some of the images contained in this catalog may have been simply copied from other sources without securing permissions for re-use. Be warned.
My comment: Very useful resource for finding image cutouts of objects that can be integrated in existing layouts or photographs thanks to their having a trasparent background.
Try it out: http://pngimg.com...
On this site you can download free PNG images, pictures and cliparts for design and web design in best resolution and quality. Highly recommended. 9.5/10