FSPViewer - A standalone viewer for equirectangular panoramic images.
Photo Sphere Viewer - A JavaScript library to display Photo Sphere panoramas
Panini - Download Panini perspective tool for free. Panini is a visual tool for creating perspective views from panoramic and wide angle photographs. More than a pano viewer, more than a view camera, with features of both.
Lux - Discover fun & creative products
PanoramaStudio - PanoramaStudio can create seamless 360 degree and wide angle panoramic images.