Gigapixel AI is a deep learning-based image upscaler that can increase the resolution and quality of images in a natural way. It adds realistic details and textures to low-resolution faces and other subjects such as mountains, feathers, fur, architecture, and more. It can also remove compression artifacts and sharpen images, enabling users to zoom, crop, and print without losing quality. Gigapixel AI works as a standalone, as a plugin for Adobe Lightroom and Photoshop, and is compatible with both Mac and Windows. (I personally use this tool a lot)