((new)): Air Explorer Portable
This is the headline feature. You want to move 50GB of photos from Dropbox to Google Drive? Standard methods would take 2 days (download to PC, upload to Drive). Air Explorer does it server-side (or rather, direct API-to-API). It tells Dropbox to send the file directly to Google Drive. Your computer acts only as the traffic cop. It is blazingly fast.
If you are tired of logging into five different browser tabs just to move one spreadsheet, download the Portable version. Keep it on your desktop. Keep it on your thumb drive. air explorer portable
We live in a multi-cloud world. You probably have one foot in Google Drive for those collaborative Docs, your entire photo library locked into Amazon Photos, and years of work backups sitting pretty on OneDrive or Dropbox. This is the headline feature