IIRC Dropbox was originally created using librsync Dropbox has modified it https://github.com/dropbox/librsync https://github.com/dropbox/librsync This is wh

IIRC Dropbox was originally created using librsync Dropbox has modified it https://github.com/dropbox/librsync https://github.com/dropbox/librsync This is why I prefer open source software. I can modify it One person can use librsync to create a Dropbox company. Another person can use librsync for noncommercial purposes, e.g., to transfer and sync their own files Either way, it's librsync