@rich o brien said:

Free and Open Source AI Image Upscaler for Linux, MacOS and Windows

https://github.com/upscayl/upscayl

You can find the relevent installer for you OS here...

https://github.com/upscayl/upscayl/releases/tag/v1.2.0

For photo upscaling it does a good job considering...

It can wash away detail somewhat but if you're in a pickle and need a quick render upscaled this is useful.

I need crypto platform.