Use Cube to Sphere online tool, when you need to covert 6 cube images into one sphere 360 panorama. Please upload cube sides into accordingly place by drag the image into big squires or click upload and select the side. Once the file is uploaded it will appear at preview small cross at its place, you can change the side by upload new file if the incorrect place was selected for the side.
Once all 6 sides are uploaded the converting process will start. Please be patience the converting takes some time, you will see running flower. If the process continue then server still works to create 360 sphere panorama for you, please do not close page.
When the process is completed you will see small preview at the bottom, please click download to get your stitched panorama. Please be patience. If any error appears the converting process stops and you will see red error message, if the converting is running, then all goes well, just wait :)
The delivery file is TIF with right meta data for Equirectangular projection, it is special to keep 100% quality of your photo.