12 Best AI Image Upscalers to Enlarge Images to 4K and Higher Quality

When you take a photo or generate an AI image, you may find that they become a blurry mess of pixels if you zoom in. You're not alone. If you're creating AI images for printing, showcase a produce photo on a large display, or just trying to restore an old photo, there’s a good chance you’ve Googled something like “how to upscale an image without losing quality?” at least once.

This is where AI image upscalers come in. By intelligently analyzing the existing pixels and adding detail, they can significantly enlarge your image to 4K and higher resolutions without quality loss. But with so many AI image enlargers out there (free vs paid, mobile vs desktop, fast vs photorealistic), which one is able to increase the resolution without detail loss? Below are the best AI image upscaling software you can use.

Best AI Image Upscalers in 2025

1. Aiarty Image Enhancer

Price: Free trial, $75/Premium

Aiarty Image Enhancer is a dedicated app that can make images sharper and larger based on AI. It supports images .jpg, .png, .tiff, webp, bmp, and various raw images from AI image generators, Sony, Canon, Panasonic, Fujifilm, websites, and more.

This AI image upscaler excels at enlarging images and photos (up to 800%) to 4K, 16K, 32K, 300DPI, any resolution. Its AI image upscaling algorithm is trained to reserve and create natural-looking details, such as textures, fur, skin, hair, and shadows. With Aiarty, you can confidently upscale image prints for online marketplaces like Etsy or create 4K desktop wallpapers and posters without sacrificing quality. In the AI image upscaling, there are two major benefits:

• Image quality correction: Aiarty excels at removing noise in photos, sharpening blurry images, and removing JPEG artifacts. It can tackle a wide range of image issues, including grain, pixelation, motion blur, compression artifacts, gaussian blur, etc.
• AI details reconstruction: Its unique detail reconstruction feature intelligently analyzes the pixels and recreates natural details during AI upscaling, denoising, or deblurring.

Best for: Upscale low-quality images to higher resolutions and improve the quality of problematic images to make them clear. The top choice for those who prioritize preserving every last detail of the original impages.

In my hands-on testing, I was quite impressed by Aiarty Image Enhancer. This thing doesn't just make your pictures bigger; it's like it gives them a whole new lease on life! The clarity it brings to the upscaled images is seriously impressive – it's like the fuzziness just vanishes.

But the real magic? It's in how it handles the tiny stuff. You know, those little details that can get all mushy with other upscalers? Aiarty? It's like it has a magnifying glass and a super-steady hand. I'm talking about seeing each individual hair strand, the delicate curve of an eyelash, and even those adorable little freckles on a face – they all stay crisp and look completely natural, even when you blow the image up to what feels like the size of a poster. Honestly, it's like the details were always there, just waiting to be revealed.

2. Img.Upscaler

Price: Free with limits (starts from $3.9/ month for 100 credits)

Img.Upscaler is an online AI image upscaler based on AI super resolution tech. It lets you to enlarge the images by 200% and 400% with high output quality. After you upload and upscale the image, there are options to let you crop, rotate, flip, add filters, fine-tune, decorate and more. Based on my experience, the image quality after upscaling is quite good, with small details like facial features and hair strands being preserved very well. If you have multiple images to upscale, you can upscale up to 5 images to process at the same time.

On the free AI image upscaler, you can enlarge 20 images for free per month. After that, you will need to subscribe to a plan, which starts from $3.9/ month for a yearly plan.

Try Img.Upscaler

Best for: Quickly upscale several images to not very high resolutions.

3. Pixelcut

Price: Free with paid AI edits staring from $8/month

Pixelcut offers an AI-based image upscaler online. It uses advanced AI tech to add pixels to the original image to upscale it by up to 400%. The whole speed is super fast. It's a great helper for  photographers, designers, or e-commerce owners who need to upscale multiple images. There are two AI models for upscaling: Fast Upscale and Creative Upscale. The Fast Upscale will deliver upscale image fast, while the Creative Upscale will alter some details and take more time.

In my experience with the Fast Upscale, while the upscale image is in high quality, there is a subtle loss in very fine details, such as the intricate texture of lips and the freckles on the face. That being said, considering the AI image upscaling tool of provided for free, the image quality is actually quite impressive.

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Best for: Ideal for users needing quick, free image upscaling without demanding high levels of detail.

4. Upscale.media

Price: Free with limits (starts from $0.10/credit)

Upscale.media is an online AI image upscaler. It helps enlarge your images by 1x, 2x, or 4x with just a few clicks. You can upload photos directly from your computer or provide a URL for online images. It supports popular image formats like JPG, PNG, WEBP, and HEIC, ensuring compatibility with most image files. It can also reduce noise, improve the image resolution, and remove JPEG artifacts.

This AI image enlarger is also available for Android and Apple mobiles. So it’s a good choice for those who want to AI upscale images on the go. However, you should know that the Upscale.media currently accepts images with a maximum size of 1500x1500 pixels and 25MB. If you want to enhance a large number of images at once, consider Upscale.media's sister service, Pixelbin.io, which offers bulk image processing capabilities.

Try Upcale.media

Best for: Upscale.media is a web-based AI image upscaling tool ideal for users seeking a streamlined approach to image upscaling. Its straightforward interface and efficient AI processing prioritize ease of use, making it a suitable choice for those who require occasional image upscaling without extensive editing features.

5. VanceAI

Price: starts from $0.049/credit (or $ 39.90/month for the software)

VanceAI Image Upscaler is an AI-powered tool that allows users to enlarge images online and through desktop software. It boasts impressive upscaling capabilities, offering online enlargement up to 8x and desktop software reaching a staggering 40x. This caters to users who need significant image size increases. The AI image enlarger offers five AI models specifically trained for photos, anime, art, text, and "Magic Enlarge," aiming to optimize results for photos, posters, banners, AI-generated images, etc.

VanceAI isn't just about AI image upscaling. Users can perform basic image editing tasks like cropping, color adjustment, filtering, sharpening, and noise reduction – all within the same platform.
VanceAI supports image uploads up to 10MB with a maximum resolution of 34 megapixels. However, the desktop version allows for even larger images. Upscaling an image without watermark needs 1.0 credit.

Try VanceAI Image Upscaler

Best for:

• Users who need to significantly enlarge images (up to 40x) with AI tools while maintaining some details.
• Users who want basic image editing tools alongside upscaling functionality.

6. Topaz Gigapixel AI

Price: $99 (incl. 12 months of updates), $64 for Auto Renewal, $79 for Manual Renewal

Topaz Gigapixel AI is a powerful tool for upscaling images without any noticeable loss in quality. It excels at preserving detail and sharpness when enlarging images using AI. Users can choose image magnification levels from 2x to 6x, allowing flexibility depending on their desired output sizes. The software provides six different AI models specifically trained for various image types, such as Standard, HQ, Art & CG, Lines, etc. This allows for potentially better upscaling results based on the image content. You can fine-tune settings for optimal results on different subjects. Additionally, sliders allow you to adjust noise suppression, blur removal, and compression artifact reduction.

It's a popular AI image upscaler for increasing the resolution of artwork generated by platforms like Midjourney, upscaling images for high-quality prints without sacrificing detail, reimgining low-quality images, enhancing details in portraits and human faces, etc.

Try Topaz Gigapixel AI

Best for: User who want an AI image enlarger with best results and the most control.

7. Upscayl

Price: Free

Upscayl stands out as a free and open-source AI image upscaling tool. It’s powered by the NCNN framework and Real-ESRGAN architecture to significantly enlarge images while preserving some level of detail. You can choose between a convenient online tool and downloadable desktop software, both offering up to 4x AI upscaling. Upscayl allows resizing up to 16x without AI, perfect for basic enlargements (except the Double Upscayl model). It offers 10 AI models specifically trained to enhance different image types, such as General Photo (Real-Esrgan), General Photo (Ultra-sharp), and Digital Art, with the desktop upscaler offers 5 models only.

This free AI image upscaler is extremely straightforward and easy to navigate, requiring minimal technical expertise. Whethere you need to upscale creations from platfroms like Midjourney or DALL-E for printing or digital display, prepare images for T-shirt design graphics, or DIY personal scrapbooking, Upscayl can easily enlarge your image into the size you need.

Try Upscayl Free AI Image Upscaler

Best for:

• Users who only need to enlarge images occasionally and prioritize ease of use or quick enhancement.
• Upscayl might be suitable for upscaling photos with less intricate details where preserving every nuance is less critical.

8. Bigjpg

Price: Free with limits (starts from $6/2 months)

Bigjpg is a simple online AI image upscaler. Bigjpg offers AI-powered upscaling, allowing users to enlarge images by factors of 2x, 4x, 8x, and 16x (paid plans only). It’s based on a special algorithm that can reduce noise and artifacts during upscaling, leading to sharper and clearer results compared to traditional methods, like PS. Despite its name "Bigjpg," the tool accepts various image formats commonly used in photography and digital art, including JPEG, PNG, and BMP.

The AI image enlarger offers a free version. It can upscale images up to 4x magnification, with a maximum file size of 5MB. The processing speed is slower than paid plans, and batch processing is unavailable. You can upgrade to access higher upscaling options (8x and 16x), faster processing speeds, and the ability to upscale images in batches. There are three paid tiers: Basic: $6 for 2 months (500 images/month), Standard: $12 for 6 months (1,000 images/month), and Premium: $22 for 12 months (2,000 images/month).

Try Bigjpg AI Image Enlarger

Best for: Bigjpg is best for upscaling anime images or illustrations where it potentially excels at detail and color preservation.

9. Nero Image Upscaler

Price: Free with limits (starts from $19.95/month)

Nero Image Upscaler is an AI image enlarger online employs image super-resolution technology based on DCNN. It has been trained a massive dataset of different images to effortlessly upscale your images by 400% to 4K, while preserving their natural look and quality. It offers 6 models, targeted at enhancing the quality of blurry portrait, anime images, photographs, general images, and business pictures. It can remove blur and JPEG artifacts from images.

Available as both an online tool and a desktop program (Windows) with a mobile app version (iOS, Android), it empowers users to effortlessly upscale their images on various platforms. The Nero AI Image Upscaler on PC offers more control over the AI image upscaling process, such as 5 different AI models, 2x, 3x, 4x upscaling options, ability to customize the image size, etc.

Try Nero Image Upscaler online

Best for: Raw images that hasn’t been upscaled or pixelated before. It also works well with AI-generated images from different AI generators.

10. Hitpaw Photo AI

Price: $89.99/year

Hitpaw Photo AI can AI upscale images by up to 800%, achieving stunning 2K, 4K, or even 8K resolution. It also allows you to upscale an image to a specific size you customize. This AI image upscaler offers various AI models such as General model, Denoise model, Colorize model, etc. Those models are tailored for specific tasks like noise reduction, low resolution adjustment, color correction, and detail enhancement. So it’s a good choice to increase the quality of old and blurry photos, anime, portraits, etc.

Hitpaw Photo AI goes beyond simple AI image upscaling. It also provides the features to generate AI image, generate AI portrait, remove background or object from images, and make ID photos. However, it doesn't offer free trials either so users can’t review the features before purchase.

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Best for: Restore and salvage old, grainy, and low-quality photos.

11. DeepImage

Price: Free with watermarks (starts from $6.00/month)

DeepImage AI offers a straightforward online tool for upscaling images. Users can choose magnification factors from 2x to 16x, significantly increasing image resolution. It contains a free and a paid version. The free plan lets users upscale images up to 4K resolution (with watermark), with a maximum target resolution of 16 megapixels (4096 x 4096). You can unlock higher resolutions, reaching up to 340 megapixels (18439x18439) and remove watermarks for a clean output by upgrading to the paid plan.

You can also upgrade to its AI Image Enhancer Pro, which offers options to upscale by width & height, denoise, sharpen, enhance face details, adjust color/lighting, batch upscale, etc.

Try DeepImage AI Image Upscaler

Best for: Users who simply need to increase image size without extensive editing

12. Luminar Neo

Price: $79.00/year

Luminar Neo's AI Upscale is an image-enlarging software extension designed to upscale images by up to 6x. It uses advanced artificial intelligence to enhance image resolution naturally, even for non-raw files. The company aptly describes Upscale AI's versatility: "Crop captivating details from panoramas, achieve high-quality zoom-ins of wildlife, sharpen macro shots, revitalize old photos, prepare images for printing, and more." And it delivers! The output boasts impressive natural detail, even at higher magnifications.

Only to note that as an overall image editor, the Upscale AI is one of its many features. To access AI image upscaling, add your image > click Catalog > drag the image down to the Upscale AI box at the bottom of the interface.

Try Luminar Neo

Best for: Users who want both photo editing and natural image upscaling.

Summary

Today it’s easy to upscale your low-resolution images to large size without quality loss. You simply need to get a good AI image upscaler tool. In this article, we’ve list the best AI image enlarger software and online tools. You can choose an AI image upscaling solution that can upscale images to 8K or higher, remove image artifacts such as noise, compression pixilation, blur, and handle multiple images. By prioritizing these features and taking advantage of free trials, you'll be well-equipped to select the best AI image upscaler for your needs. Unleash the hidden potential within your low-resolution images and transform them into stunning, high-quality visuals with the power of AI.