Pixave - The ultimate image organizer for the Mac.
Roboflow Annotate - Annotate images with ease. Export to any format.
Eagle App - Unify your creative inspiration in one place. Store anything – inspiring images, design mockups, illustrations, screenshots and more.
Annotable - Ultimate image annotation & markup tool
Alchemy by Fritz - The easiest way to convert a neural network to Core ML
Annotate Screen - Browser based annotation tool.