Phosus

Gigapixel AI is an image enhancement tool powered by deep learning, designed to boost the resolution and quality of photos smoothly. It enhances low-resolution faces along with elements like mountains, feathers, fur, and architecture by adding authentic details and textures. Additionally, it eliminates compression artifacts and sharpens images, allowing for zooming, cropping, and printing with maintained quality. Gigapixel AI can function independently, as a plugin for Adobe Lightroom and Photoshop, and it supports both Mac and Windows platforms. (I frequently use this tool)

Upscayl is an open-source AI image upscaler available for free, compatible with MacOS, Linux, and Windows. Developed by TGS963 and Nayam Amarshe, it can be downloaded from GitHub.

Fix Blur uses AI technology to improve and clarify blurry photos, with a special emphasis on enhancing faces. It aims to revitalize valuable yet imperfect images, providing a perfect solution for restoring treasured memories that have been affected by camera shake, focus problems, or other causes of blurriness. Individuals may wish to use it to enhance their personal photo collections, ensuring that significant moments are captured with the clarity they merit, or for professional needs where sharp images are crucial. Its free and unlimited service makes it accessible and attractive to anyone seeking to correct blurry photos without the expense of costly software or the need for professional expertise.