pixlr you can re size pictures and Photoshop you cannot do that. Pixlr is a perfect online image editing application that is designed for non professional users and allows them to easily edit images.Photoshop.com is the complete solution for managing, editing, storing, and sharing your photos online, with tutorials, inspiration, and more. They are two different thing that u can do certain stuff on both web sites. Photoshop.com is available from any web-enabled computer, compatible mobile phones, and directly from within Adobe Photoshop Elements 7 or Adobe Premiere Elements 7 software. Pixlr combines image design and paint tools with photo editing and adjustment features more convincingly than any other online image editing program.