Automa - A Chrome extension for automating your browser by connecting blocks.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Shutter - Shutter is a feature-rich screenshot program.
Scriptable - Automate iOS using JavaScript
Snipping Tool - Use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image