AI Image Upscaler enlarges a photo, drawing or screenshot 2x, 3x or 4x and uses an AI model to add sharp edges and plausible detail instead of the blur you get from a normal resize. Compare before and after with a slider and save the result as PNG, JPG or WebP. It runs in your browser, so your image is never uploaded.
How to upscale an image
- Click Choose an image or drop a picture on the page.
- Pick Enlarge: 2×, 3× or 4×.
- Pick Quality: Best for photos and fine detail, or Fast for a smaller download that works in any browser.
- Click Upscale and wait. The first time, the model is downloaded and cached. Click Stop if you change your mind.
- Drag the Compare slider: left is the original enlarged without AI, right is the upscaled result.
- Choose Save as and click Download. The file gets the scale in its name, such as
holiday-2x.png.
Best or Fast
| Best | Fast | |
|---|---|---|
| Good for | Photos, textures, fine detail | Drawings, screenshots, quick results |
| Runs on | Graphics card (WebGPU with 16-bit support) | Graphics card when available, otherwise the processor |
| Browser | Recent Chrome or Edge on a computer | Any modern browser, phones included |
| First download | About 34 MB model + 25 MB engine | About 5 MB |
| Largest result | About 24 megapixels | About 24 megapixels on the GPU, about 8 on the processor |
On the processor, Fast takes about a minute per megapixel of input, so a phone photo can take a few minutes.
How it works
The AI model always enlarges 4x. For 2× and 3×, the tool makes the 4x result and then scales it down with a high-quality filter. That keeps the sharpness of the model at every size.
Large images are processed in overlapping tiles, so any picture size works and there are no visible seams where the tiles meet. If the enlarged image would go over the size cap, the input is first reduced and the tool shows a message, so you know the result is smaller than the full scale.
Formats
| Save as | Use it for |
|---|---|
| PNG | Lossless quality, keeps transparency. Largest file |
| JPG | Photos where a smaller file matters. No transparency |
| WebP | Small files that keep transparency, for the web |
An upscaled image has many more pixels than the original, so files get much bigger. Use Compress Image afterwards if you need a smaller file, or Resize Image to hit an exact size.
What to expect
- Small photos, old phone pictures and web images gain clean edges and look crisper at the larger size.
- Drawings, logos and screenshots come out with sharp lines and little noise.
- The AI invents texture that looks right; it does not know what was really there. Faces, small text and number plates that are not readable in the original will not become readable.
- Very blurry or heavily compressed photos get larger and cleaner but stay soft.
Tips for better results
- Start from the best copy you have. Upscaling a file that has already been shrunk and recompressed several times gives weaker results.
- Use 4× for small pictures, and 2× when the image is already medium-sized, to stay under the size cap.
- Crop to the part you need first with Crop Image. A smaller input is faster and can be enlarged further.
- For a print, check the result at 100% zoom before you order.
Private by design
Your images are processed on your own device and never uploaded. See how it works.