Send is described as 'Share files up to 2.5GB with end-to-end encryption and auto-expire links. Fork of Mozilla's Firefox Send, now self-hostable and compatible with ffsend CLI' and is a popular large file transfer service in the file sharing category. There are more than 100 alternatives to Send for a variety of platforms, including Web-based, Windows, Mac, Android and Linux apps. The best Send alternative is OnionShare, which is both free and Open Source. Other great apps like Send are Transfer.it, pCloud, Hoodik and Wormhole.