16K Image Upscaler
16K output is coming soon to this 16k image upscaler. 8K and 4K work today, free and on your own device, with no upload and no sign-up.
or drop / paste an image here · JPG, PNG, WebP up to 20 MB
Runs in your browser. Your image is never uploaded.
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AfterWhat This 16K Image Upscaler Does Today
Pick a JPG, PNG or WebP photo and choose a size. The 8K button makes the long edge 7,680 pixels and the 4K button makes it 3,840 pixels. The shape of your picture stays the same: nothing is cropped and no borders are added.
The 16K button is there, but it does not make an image yet. Select an image, choose 16K and press Upscale, and a short waitlist form opens instead: leave your email and tell us what you need 16K for, and we will write once it works.
This 16k image upscaler uses an AI upscaling model built for real photos. It runs on your own computer or phone, and the picture is never uploaded to our servers. It fills in sharper edges and cleaner texture, which are its best guess, so compare the result with your original before you use it.
Made for
- Large prints
- Wallpapers
- Product images
- Design files
- Close crops
16K vs 8K vs 4K: Pixels, Memory and Print Size
The same 16:9 frame at each size. Every step up has four times the pixels of the one below it.
| 16K | 8K | 4K | |
|---|---|---|---|
| Long edge | 15,360 px | 7,680 px | 3,840 px |
| A 16:9 frame | 15,360 x 8,640 px | 7,680 x 4,320 px | 3,840 x 2,160 px |
| Megapixels at 16:9 | About 133 MP | About 33 MP | About 8.3 MP |
| Memory for the plain pixels | About 530 MB | About 133 MB | About 33 MB |
| Width at 300 PPI | 51.2 inches | 25.6 inches | 12.8 inches |
| On this page | Coming soon, join the waitlist | Works on a computer, within the pixel cap | Works, also on iPhone and iPad |
Why 16K Upscaling Is Hard in a Browser
A 16K picture is huge. A 16:9 frame at 16K holds about 133 million pixels, and a 4:3 photo holds about 177 million. Held as plain color values, the finished 4:3 image alone needs about 700 MB of memory, before the model does any work.
This tool runs inside your browser tab, and tabs get a limited share of memory. On a computer our results top out at about 50 million pixels. That covers 8K at 16:9 or 4:3, but square and near-square 8K results go over it. On iPhone and iPad the limit is about 16.7 million pixels, which is why 4K is the largest size there.
We want this 16k image upscaler to keep your photo on your device at 16K too, and we will turn the button on once it works.
Which Size to Pick While 16K Upscaling Is on the Way
The 16k image upscaler waitlist asks what you need 16K for. For most of those jobs, 8K or 4K already does the work.
Posters and large prints
Some print guides ask for 300 pixels per inch. At that density 8K covers a print 25.6 inches wide, and at 150 PPI it covers 51.2 inches, the same width 16K gives at 300 PPI. Ask your print shop what it needs for your size and viewing distance.
Wallpapers for screens
A 4K screen shows 3,840 x 2,160 pixels and an 8K screen shows 7,680 x 4,320. Upscale to the size of your screen; a 16K wallpaper would be scaled down on every screen that size.
Product images
Pick 4K for listings and pages, and 8K when you plan to crop into a label or a detail. Check printed text after upscaling, because the model can reshape small letters.
Design files and layouts
An 8K result gives a layout more pixels to scale and crop, but check the AI-made detail at the size you will use it. Save as PNG to keep a transparent background; the tool scales the transparency along with the picture.
Cropping into a detail
When you only need one part of a photo, crop it first and then upscale. Every new pixel then goes into the part you keep, and a 4K or 8K result of that crop may be all you need.