WeTransfer - WeTransfer is a free service to send big or small files from A to B.
Element.io - Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
Mega - Secure File Storage and collaboration
Chatib - Chatib is an online chat room where you can meet and chat with new people, make them friends, or even data them online.
4Shared - 4shared is a perfect place to store your pictures, documents, videos and files, so you can share them with friends, family, and the world. Claim your free 15GB now!
Kandan - Open Source private chat server. Your own private Chat server in minutes, plus additional features.