GIMP
A free, open-source image editor for photo retouching, compositing, digital painting, and layered graphic design on Windows.
Image Editors for Windows
Edit, retouch, enhance, resize, and create images with powerful image editing software for Windows.
Affinity
Professional photo editing, vector design, and page layout in a single free Windows app from Canva.
PhotoScape
Free all-in-one photo editor for Windows with batch processing, collage tools, and an animated GIF creator.