This video shows how to upscale within Stable Diffusion and how to upscale using an external app. You can use whichever method you prefer.
[Upscale extension].
github.com/Coyote-A/ultimate-...
[Image Upscale Site]
www.upwww.upscale.med...
imgupscaler.com/
imageupscaler.com/upscale-ima...
clipdrop.co/image-upscaler
www.cutout.pro/
www.pixelcut.ai/tools/image-u...
Thank you!!!