Dropbox - Online Sync and File Sharing
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.