Retina Everywhere is a free Chrome add-on developed by Harold Martin. As the name suggests, this add-on aims to upgrade interface images to Retina (HiDPI) resolution on various websites. It specifically targets sites like Amazon.com, iTunes Preview, The Verge, AppleInsider, and HipChat.

Retina Everywhere is designed for Apple MacBook Pro with Mac OS X and is created entirely in CSS for ultra-fast loading. The add-on enhances the visual experience on supported sites by optimizing the display of images. By upgrading the interface images to Retina resolution, users can enjoy sharper and more detailed visuals.

With its focus on improving image quality on supported websites, Retina Everywhere is a useful tool for users who want to enhance their browsing experience on their MacBook Pro.