Binder is a web app made up of a Node.jsᶤ server backend and an Angularjs⁺ frontend. Its purpose is to create a single location where you can view files from different storage providers. It is not a provider in itself, it's just a window to other providers.
The server backend runs on a Google Cloud™ hosted instance. Whilst the frontend is requested and run on any compatible web browser.
You can visit binder online with this link.