Upscayl is an open-source desktop application for enlarging and enhancing images with AI models. It uses neural-network upscaling to increase image resolution while reconstructing detail more effectively than traditional interpolation, making it useful for old photos, digital artwork, compressed images, and low-resolution graphics. The application provides a graphical interface so users can apply AI upscaling without working directly with command-line model tools.

Upscayl runs locally and is available across major desktop operating systems, with GPU acceleration used when supported by the hardware. Users can select different enhancement models and process images without uploading them to a cloud service, which is attractive for privacy-sensitive workflows. It is a straightforward choice for creators and general users who need higher-resolution images and prefer a free, open alternative to commercial AI image-enhancement services.