The FileCloud server is self-hosted and gives me the ability to store and share files, sync across different devices and back-up all documents and photos so that I don't have to worry about security.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
e2ee cloud - e2ee-cloud is a open source, self-hosted, end-to-end encryption software.
Air Explorer - Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu,...) as well as WebDav and FTP connections.
Filecamp - Digital Asset Management & Online Proofing tools beautifully integrated, into one secure and cost-effective solution. Manage all your digital marketing assets from your own good-looking, easy-to-use spot in the cloud. Unlimited users in all plans!
ExpanDrive - ExpanDrive is a fast network drive and browser for cloud storage.