waifu2x_snowshell VS cupscale

hope this is good enough you can use waifu2x snowshell if you wanna do it yourself and try other settings.

It's literally just an AI. You just drag and drop it. I use waifu2x_snowshell because it's the most user friendly.

If you have a PC, you can download a wrapper for waifu2x like this one that lets you upscale without having to rely on a website.

And, to clarify I used Waifu 2x Snowshell with the waifu2x-ncnn-vulkan converter.

Try waifu2x... this is what I've been using and works mostly fine with even non-anime stuff. It can take advantage of CUDA for the image processing and if you are looking for a simpler way (with OpenCL support) there's a fork called Waifu2x_Snowshell it can upscale images to any limit you want locally on your machine.

Unless you have a good gpu or patience (to use your CPU). You can run it directly on a computer WHICH doesn't have a size or file limit. There are many forks like this one. Just select your setting and drag and drop :D there's also a similar version for iPhones but I can't recall the name...

If you want to do more, there's chaiNNer and CupScale. You need to download an AI model to use those. There are a lot of anime/cartoon models out, so pick one that you like from here. (Note: Upscaly doesn't support these custom models.)

I'm not 100% sure how it holds up against topaz, but I've used cupscale (a gui for ESRGAN) to upscale most of my stuff. Its free (https://github.com/n00mkrad/cupscale) and you can find a million different ESRGAN models which are focused on different kinds of images (https://upscale.wiki/wiki/Model_Database).

Now upscaling isn't hard to do by itself, but the setup can be difficult. As I said earlier, ERSGAN is the preferable way to do it. (https://github.com/n00mkrad/cupscale) Cupscale is my preferred tool for doing it this way. (https://www.topazlabs.com/gigapixel-ai) Gigapixel is another option that's easier for newcomers, but may not produce as good of results. They even have a free trial if you want to demo the tool.

I use cupscale for upscaling things. Allows chaining models and handles video.

For local there's cupscale and chainner