PhotoCat's Image Extender uses generative AI to uncrop a picture, adding extra background around the edges so it fits a new frame or size. It is useful when a photo is cropped too tightly for a banner or post.
The same site offers many more photo and video tools, such as old photo restoration, face swap, object removal, background removal, a batch editor and video enhancement. It suits social media users, sellers and designers, with free use to start.