Pix2pix - Turn your terrible doodles into cats and other things ✏️😸
showFoto - ShowFoto is the standalone image editor of the digiKam project.
Cool Art Drawing Ideas - Cool Art Drawing Ideas is a free Art and Design app that helps you to draw cool and best pictures.
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
SketchDaily.io - Free educational tool for improving your sketching skills.
PhotoFlare - Quick, simple but powerful Cross Platform image editor.