Upscayl

Upscayl is a free, open-source AI image upscaler available as a desktop application for Linux, macOS, and Windows. It uses advanced ESRGAN-based models to upscale images up to 4x resolution with impressive detail enhancement, all processed locally on your GPU. The app supports batch upscaling and multiple AI models, making it an excellent choice for users who want powerful upscaling without cloud dependencies or subscription fees.

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