Upscayl Open Source AI Image Upscaler

Upscayl is a free, open-source AI image upscaler for Linux, macOS, and Windows. It uses Real-ESRGAN models with Vulkan GPU acceleration to enhance low-resolution images, supporting batch processing, custom models, and multiple output formats.

Installation

Use the upstream install or setup path that matches your environment:

• brew install --cask upscayl
• git clone https://github.com/upscayl/upscayl
• npm install
• npm run start

Requirements and caveats from upstream:

• I recommend using Volta: https://volta.sh for installing Node.js.
• Download and install volta, then do: volta install node.