Loading Image Upscaler…
AI image upscaler
Upscale images right in your browser. This image upscaler turns small, blocky pictures into sharp ones that are 2× or 4× bigger. It's free, needs no sign-up, and your photo never leaves your device.
Preview & Compare
ExampleDrag the slider to see a real 4× result from the free image upscaler.
Enhancement mode
Upload your image
Max 50MBThese are real 4× results from the free image upscaler on this page, not mockups. We shrank each photo to 384 × 256 pixels, like a small web image, and upscaled it once. The left side is the same small image, stretched the normal way.
At 384 pixels, the pattern on this product photo turned to mush. After the image upscaler made it 4× bigger, each diamond on the pineapple teapot has a clean edge, and the leaves on the lid are crisp again.
Real output, no retouching
At 384 pixels, the bird's eye and face stripes blurred together. With the image upscaler at 4×, the beak, eye and stripes are crisp. The fine lines in the green feathers came out smoother, a bit like paint.
Real output, no retouching
The image upscaler brought back clean window frames and cloud edges. Thin details were harder. The railing bars blended together, and the bricks on the tower look smoother than in real life.
Real output, no retouching
Photos: CC0, via Wikimedia Commons (Jebulon, Poliphilo, AdinaVoicu, and The Metropolitan Museum of Art for the teapot). Cropped to 3:2, shrunk, then upscaled once on a laptop with WebGPU. We left out one test: a camera whose tiny label came out as the wrong letters.
An image upscaler helps any time a picture is too small for the place you want to use it.
Saved a picture that is only a few hundred pixels wide? Our image upscaler makes it 4× bigger, so it stays crisp on a big screen.
Use the image upscaler to enlarge small product shots for a store page or a catalog, without blocky edges.
Run the image upscaler before you print. A 4096-pixel image prints about 13 inches wide at 300 DPI.
Make a small image wide enough to fill a laptop screen, a TV or a full slide.
Early phones and cameras saved tiny photos. An AI image upscaler makes them 2× or 4× bigger.
Need a bigger file for a form or a profile? Increase image resolution with the image upscaler, without installing an app.
This image upscaler gives you two engines. Start with the free local one. Switch to UModel when the photo is blurry, not just small.
| Feature | Local image upscaler | UModel (cloud) |
|---|---|---|
| Price | Free, no credits | 1K: 1 credit · 2K: 2 credits · 4K: 3 credits on paid plans |
| Sign-up | Not needed | Not needed for free daily credits |
| Your image | Stays in your browser | Uploaded to our cloud |
| Output size | 2× or 4×, up to 4096 px | 1K, 2K or 4K on the long side |
| How it works | Sharpens the pixels you have | Redraws the photo with new detail |
| Best for | Small, clean images | Blurry or very small photos |
The image upscaler runs in your browser. There is nothing to install.
Choose a JPG, PNG or WEBP file up to 50 MB. Small images get the biggest boost.
2× is faster. 4× gives more detail. The first run downloads the model once, about 30 MB or 95 MB.
Click Upscale Image. When the image upscaler is done, drag the slider to compare, then download a PNG.
A few small habits help the image upscaler do its best work.
Upscaling adds pixels. It can't bring back detail that the camera never caught.
Yes. The local image upscaler is free, with no credits and no sign-up. UModel uses credits. You get up to 5 free credits a day, shared with our other cloud tools. A 1K result costs 1 credit and a 2K result costs 2. Free credits reset at 00:00 UTC. 4K output is for paid plans. Device, network and service limits may lower the free amount.
Upload an image about 1000 pixels wide and choose 4×. On a device that supports WebGPU, the image upscaler makes it about 4000 pixels wide, which is 4K. Older devices top out lower. To get a 4K result from any image, choose UModel at 4K on a paid plan.
Not yet. 8K is 7680 pixels wide. The largest result from this image upscaler is 4096 pixels on the long side. That is enough to fill a 4K screen.
Normal resizing stretches pixels, so a bigger image looks soft and blocky. An AI image upscaler draws clean edges and textures instead. It can't add detail that was never there, but the result looks much sharper than a stretched copy.
Not with the local image upscaler. It runs on your device, and your image never leaves your browser. Only the model files are downloaded. If you choose UModel, your image is uploaded to our cloud and stored so you can download the result. Read our privacy policy to learn more.
2× uses a lighter model, so it is faster and works on more devices. 4× makes the image four times wider and taller. It uses the high-detail model when your device supports it.
Upload a JPG, PNG or WEBP image up to 50 MB. The local image upscaler works on up to 1024 pixels on the long side and makes up to 4096 pixels. Results download as PNG files.
Big images are scaled down to 1024 pixels before upscaling, so results from the local image upscaler top out at 4096 pixels. Phones and older browsers may use a lower limit. For the biggest result, crop first or use UModel at 4K.
It can. The local image upscaler sharpens what it sees, but tiny text can come out as the wrong letters, and fine fur or hair can look smooth. UModel redraws the image, so small text, numbers and faces can change too. Always check the result before you use it.
Our image unblur tool is made for blurry photos and starts with UModel, which rebuilds lost detail. This image upscaler is made for small photos. It starts with the free local model, which makes images 2× or 4× bigger.
Drop in a small photo and get a bigger, sharper copy. The image upscaler is free, with no account needed.
