Completely free secure easy-to-use online viewer. VR-ready. Mobile-friendly. Can generate URL to share 360-degree panorama with others. Works directly from the page using capabilities of WebGL & WebVR built into your browser. High-performance with no plugins required. Just provide an image with spherical panorama to the viewer on the page, and it will instantly prepare and show you a ready-made immersive panorama, which you can rotate, zoom in and out, go in full screen use Google Cardboard or Virtual Reality headset. This panorama 360 image viewer is server-independent software. It only works inside your browser, so the images you use remain confidential.
Unique standalone image viewer oriented to work with reference images. Has built-in always on top mode and the ability to display multiple images at once. Its main purpose is to keep reference images constantly observable. Even if you run another program in maximized window mode, the reference images will still be visible. Its third distinctive feature is the capability to download images directly from web browsers by simple drag and drop. It also can handle images from clipboard in both directions (copy "from" and paste "to"). Paste an image from clipboard to RefShelf and you already have saved reference for further usage. RefShelf can really make life easier for the most CG artists and not just for them either!