PhotoFlare - Quick, simple but powerful Cross Platform image editor.
Figma Super Tidy - Figma plugin to easily align, rename and reorder your frames
showFoto - ShowFoto is the standalone image editor of the digiKam project.
Easometric Figma Plugin - With Easometric it's really easy to create isometric layers.
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
Design Lint - A design linting plugin for Figma.