Dropzone - If you want your file uploads to work even without JavaScript, you can include an element with the class fallback that dropzone will remove if the browser is supported.

Roboflow Annotate - Annotate images with ease. Export to any format.

Dropover - Mac app for easier drag & drop

Annotable - Ultimate image annotation & markup tool

Unclutter - Unclutter is an app that is designed to help Mac users bring order to their desktop. Among other features, this powerful piece of software provides quick access to a user's notepad and clipboard.

Annotate Screen - Browser based annotation tool.