What is an AI image upscaler?

An AI image upscaler increases the resolution of an image. Instead of stretching the existing pixels like a normal resize, it generates new detail, so the larger image looks sharper and clearer than traditional upscaling.

How do I upscale an image?

Upload your image, choose 2x, 4x, or 8x, and click Generate. When the upscaled version is ready, compare it with the original and download it.

Which upscaling factor should I use: 2x, 4x, or 8x?

Use 2x for quick quality improvements and web use, 4x for most prints, marketing assets, and 4K screens, and 8x when the source image is very small or you need a very large print. Hover over each option to see its exact output size.

Can I use it as a 4K image converter?

Yes, on a paid plan. 4K UHD is 3840 × 2160 pixels and 8K is 7680 × 4320. A 1920 × 1080 image reaches 4K at 2x and 8K at 4x, and a 960 × 540 image reaches 4K at 4x and 8K at 8x. Free use is capped at 2048 pixels on the longest side.

Is the AI image upscaler free?

Yes. 2x upscaling in Standard quality works without an account, and 4x, 8x, and High quality need a free Krea account. Free use is limited to a few images and to 2048 pixels on the longest side; paid plans upscale up to 8K.

Does upscaling change my image’s aspect ratio?

No. Upscaling keeps your original framing and aspect ratio. A square image stays square and a 4:3 photo stays 4:3; it just has more pixels and more detail.

Can I upscale illustrations, AI art, and graphics?

Yes. The upscaler works on photos, digital art, illustrations, product graphics, and screenshots. Try different factors to find the best result for each style.

Which file formats can I upscale?

You can upscale JPEG, PNG, and WebP images, along with other common image formats.

I only need HD or 1080p. What should I use?

Use the HD photo converter to bring a small photo to HD (1280 × 720) or Full HD (1920 × 1080).

My image is big enough but looks soft or noisy. What should I use?

Use the AI image enhancer to improve detail and clarity without changing the size.

AI Image Upscaler: Upscale Images 2x, 4x, or 8x

Upload a photo and upscale it 2x, 4x, or 8x. Krea increases the resolution and redraws the detail the larger size needs, so the result stays sharp instead of stretched. Paid plans upscale to 4K and 8K.

.png, .jpeg, .webp, .heic, .heif

Before

After

Upscale to 4K and 8K

How large will your upscaled image be?

Each upscaling factor multiplies the width and height of your image. 4K UHD is 3840 × 2160 pixels and 8K is 7680 × 4320, so the factor you need depends on where you start. 4K and 8K output need a paid plan; free use is capped at 2048 pixels on the longest side.

4K

1920 × 1080 (Full HD) at 2x

→ 3840 × 2160
4K

960 × 540 at 4x

→ 3840 × 2160
4K

480 × 270 at 8x

→ 3840 × 2160
8K

1920 × 1080 (Full HD) at 4x

→ 7680 × 4320

Resizing an image in a photo editor only stretches the same pixels, so it stays soft on a large screen or print. The AI image upscaler redraws edges, textures, and fine detail at the new size, so it looks like it was made at that resolution.

Your aspect ratio doesn’t change. A square or portrait image keeps its framing and reaches a 4K-class width or height, ready for wallpapers, prints, and large displays.

Upscale any image in 3 steps

How to upscale an image

Upload your image

Upload the image you want to upscale. JPEG, PNG, and WebP all work, from small web images and screenshots to product shots, portraits, and AI art.
Choose 2x, 4x, or 8x

Hover over each option to see its output size, then pick the one that reaches the resolution you need and click Generate. Free use is capped at 2048 pixels on the longest side; 4K (3840 pixels wide) and larger need a paid plan.
Download the upscaled image

Compare the before and after with the magnifier, then download your upscaled image for print, wallpapers, or large screens.

Why upscale images with Krea?

Resizing an image in a photo editor only stretches the same pixels. Krea’s AI image upscaler generates new detail as it increases resolution, so the upscaled image looks like it was made at that size.

Open the full Krea Enhancer

Upscale 2x, 4x, or 8x

Double a web image for social posts, go 4x for prints and 4K screens, or 8x for tiny source images and large-format prints.
Sharp detail, not stretched pixels

Edges, skin, hair, and textures are redrawn at the new resolution, so the upscaled image stays natural instead of blurry or over-sharpened.
Upscaled images in seconds

Most images upscale in a few seconds. Upload in your browser; there is no software to install.

Intuitive, powerful, and free. See what others say about Krea.

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So many AI tools out there but I always come back to Krea. It's really the one AI platform that 'just works'.

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Krea's interfaces are still the best in the industry. Everything looks and feels so clean and easy to use! Imo the easiest to use gen AI website.

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