Free open-source AI image upscaler for desktop
Upscayl is a free, open-source desktop application that uses AI neural networks to enlarge and enhance low-resolution images without quality loss. Built on Real-ESRGAN models with Vulkan GPU acceleration, it supports batch processing, custom AI models, and runs natively on Windows, macOS, and Linux. Upscayl processes images entirely on-device with no cloud uploads, making it ideal for developers and designers who need to upscale assets privately.
