Overview
Upscayl is a free, open-source desktop application for enlarging and sharpening low-resolution images with AI models. The official project describes support for Windows, macOS, and Linux, along with image upscaling, sharpening, and batch processing. The app is intended for local desktop use rather than a browser-only workflow. Its main repository contains the application source and is licensed under AGPL-3.0. The project organization also maintains a separate documentation repository, while the main application remains actively updated. It supports local image work.