ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Bashupload - Upload files from command line to share between servers
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
FilePizza - Open source application used to transfer file via WebRTC and WebTorrent.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
BlackHole File Transfer - Blockchain-based file transfer. Designed for everyday use.