LocalPhotoSphere is a single html static file that allows you to specify a photosphere file and it display it in your browser. Nothing is uploaded to any server. Everything is kept locally in your browser. This works offline if you save the page first.
There's not many bells or whistles but there's no external dependencies at all either.
Pull requests to improve or add functionalities are welcome.
This tool is part of the F² MicroTools suite. A collection of tools that that are tiny, with no dependencies and typically just do one thing.