Image upscaling has progressed more than in the past, today’s AI image upscalers can upscale images in 4K. And on some cases, even up to 8K can upscale images. It depends on whether you use the image for this use. You can also use the free tool that lets you upscale the image in 4K. If you need to upscale the image to an even higher resolution. So you have to buy its premium plan.
So in today’s post, I will tell you what are the tools that can make your image upscaling from 4K to 8K. And you can upscale the image in 4K for free.
Some tools in this list are going to be premium, and some tools will be free. If you are interested in this post. So you read this post till the end. So that you know which tools are going to be best for you.
What Are the Best AI Image Upscalers?

TopazLabs Gigapixel AI

TopazLabs GigaPixel AI is one of the best image upscaling tools, it has a complete software suite. This gives you a fast facility to upscale your image to higher resolutions than 2x, 4x, or 6x.
But if you upscale the image more than 6x. So image quality may be compromised. GigaPixel AI is very easy to use, any new user can easily use it.
Pros:
- Batch Processing: Upscale multiple images at once.
- Powerful AI: Advanced model with customizable settings.
- Free Trial: Test before buying.
Cons:
- One-Time Payment: Not free to use.
- No Web Access: Requires local installation.
- High GPU Requirement: Needs a strong GPU (Nvidia GTX 970 or better).
Waifu2x

Waifu2x is a self-sourced upscaling technology that uses Nvidia CUDA. This tool is specifically designed to upscale anime pictures. But this tool also works great for other types of images, such as realistic photos.
The higher the quality of your image, the AI will upscale it with more resolution than that. Which will make the quality of your image much higher.
You can use this tool for free, you will not get to see any premium plan in it. This tool is quite fast, in your image upscales quite quickly.
Pros:
- Open-Source: Freely available for modification and community contributions.
- Cost-Free: This can be installed locally without any fees.
- Anime Focused: Excels at upscaling anime and cartoon-style images.
Cons:
- Installation Complexity: May be challenging to set up for users without technical experience.
- Limited Performance: Can struggle with non-anime images, affecting overall versatility.
Zyro

If you’re looking for an easy way to upscale images, Zyro is going to be the best for you. To upscale the image, you have to go to the website and you have to drag and drop your image and you can use it for the interface.
It uses a standard upscale amount for every image because there is some limit in it and you cannot get the image in 4K.
Pros:
- No Account Needed: Users can access the tool without creating an account.
- Image Comparison: Allows for easy side-by-side comparison after upscaling.
- User-Friendly: Simple drag-and-drop interface with no download required.
Cons:
- Limited Settings: Lacks advanced upscaling options for customization.
- Struggles with Detail: Not very effective for intricate images with sharp details.
- Maximum Upscaling Factor: Has a restricted maximum upscaling limit.
Conclusion
With various tools available for image upscaling, users can easily enhance their visuals from 4K to 8K. Premium options like TopazLabs GigaPixel AI offer advanced features, while free tools like Waifu2x and Zyro provide accessible solutions. Choose the tool that best fits your needs and elevate your image quality effortlessly.
FAQs
What is image upscaling?
Increasing an image’s resolution to enhance size and quality without losing detail.
Are there free tools for image upscaling?
Yes, tools like Waifu2x and Zyro are available at no cost, though they may have limitations.
Can I upscale images to 8K?
Yes, some tools allow upscaling to 8K, though quality may vary.
Do I need technical skills to use these tools?
Most tools are user-friendly, but some may require basic installation skills.
How do I choose the right tool?
Consider your image type, required features, budget, and whether you prefer web-based or downloadable options. Trying a few can help you decide.