Apple iWork - iWork is an office suite by Apple.
Bashupload - Upload files from command line to share between servers
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
Airborn - Create and edit documents online without sacrificing your privacy
BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.