PTgui - PTGui is panoramic stitching software.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Hugin - Hugin is an easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
GIMP - GIMP is a multiplatform photo manipulation tool.
PanoramaStudio - PanoramaStudio can create seamless 360 degree and wide angle panoramic images.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.