Better than stretching
Normal resizing only spreads the existing pixels, so an enlarged photo looks soft and blocky. An AI upscaler has learned what real edges, textures and text look like and fills in the missing pixels accordingly. It also removes much of the noise and compression blocks of low quality JPG files.
Typical uses are old photos, small images from websites and messengers, thumbnails, screenshots and product pictures that are too small for a marketplace.
Fast and private
The model is only 5 MB and runs in your browser, on the graphics card when possible. The image is processed in tiles, so large pictures do not freeze the page. Your images are never uploaded.