Zyro is a free AI image upscaler which you can access on their website. The tool lets you upscale your images up to 4x, and the results we got from our testing were pretty great. Even compared to other GPU-heavy upscalers like ESRGAN, the upscaled images looked very similar in quality. Zyro takes about 2 minutes to upscale after you input your image, which isn’t too bad considering the tool is free!
