NAPS2 - NAPS2 is a document scanning application with a focus on simplicity and ease of use.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
XSane - A good proposal for SANE-2 has been written.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.