Wallpaper Extender for Desktop & Phone Screens
Extend a photo for wallpaper: pick 16:9 desktop, 9:16 phone, or 4:3 tablet, and the AI grows new background around the edges so your subject stays whole instead of being cropped. You get a standard web-resolution file in that ratio — not a 4K upscale.
or drop a photo here
JPG, PNG, WEBP · up to 10 MB · up to 5 at once
Source uploads and generated images are kept for 24 hours. Storage details
How to extend a photo for wallpaper
No design software, no manual cropping. Three steps take a landscape shot to a desktop frame, or a square photo to a full phone screen.
- 1Upload a photo
Add a JPG, PNG, or WEBP photo, or try one of the sample photos above.
- 2Pick a wallpaper size
Open the summary chip and choose desktop (16:9), phone (9:16), or tablet (4:3). Square, portrait, banner, and print shapes are there too.
- 3Extend and download
Sign in with Google (5 free credits, 1 credit per photo), extend, then check the edges and download.
Image Extender Pro features
Built for exact aspect-ratio targets — wallpapers, phone screens, and print framing — not a general-purpose photo editor.
Zero-config start
Upload and the tool defaults to a 16:9 canvas — no forced setup before you can extend a photo.
One summary chip
Aspect ratio and use case collapse into a single chip; open it once to change either.
Real screen & print ratios
Widescreen desktop, full-screen phone, common poster ratios — built in, not guessed.
Free credits with Google
Sign in with Google and get 5 free credits to try it on your own photos.
Automatic refunds
If the provider rejects or fails a job, the credit is returned automatically — you don't lose it.
Multiple photos at once
Signed-in accounts can extend up to 5 photos at once and download every result in one click.
Extend the frame instead of cropping the subject out
Most photos aren't shot in the ratio a wallpaper or print needs, so the usual fix is a crop that clips the subject or leaves an awkward gap. This tool extends the frame outward instead — the AI generates matching background so the ratio changes, not the subject. If you also need a much larger, print-DPI-grade file, pair the result with a dedicated upscaler — see our image extender vs. upscaler guide.
Choose the shape before the pixel size
Aspect ratio and resolution solve different problems. A 16:9 desktop wallpaper, a 9:16 phone lock screen, and a poster-shaped print each need a different frame before pixel count matters. Use the image extender to create that frame instead of cropping the subject, then inspect the result at full size for seams, repeated texture, changed lettering, or bent edges. For screen use, export the web-ready result and let the device fit it to the display. For a large print, check the printer's required dimensions and DPI afterward; if the file is too small, upscale the approved composition in a dedicated tool rather than assuming extension alone adds print-grade detail.
| What you need | Image Extender Pro | Cropping to fit |
|---|---|---|
| Tools required | One, in your browser | None, but the photo is altered permanently |
| Subject preservation | Kept whole — the background extends around it | Often clips the subject at the edges |
| Try before paying | 5 free credits with Google sign-in | Free, but there's no undo once cropped |
| Wallpaper & print ratios | Widescreen, phone, and poster ratios built in | You calculate the crop manually |
More ways to extend a photo to fit
Browse all use cases →Desktop and phone wallpapers come first, but the same tool can reshape a photo for a standard canvas or a poster-shaped layout. Extend once per size instead of guessing crop dimensions.
Turn a Photo into a Desktop Wallpaper
Someone with a photo they love who wants it to actually fill a wide desktop monitor without stretching or letterboxing.
/use/phone-wallpaperExtend Photos into Phone Wallpapers
Someone with a square or landscape photo who wants a true full-screen phone wallpaper instead of a cropped or zoomed-in version.
/use/increase-resolutionExtend Photos into a Standard, Consistent Size
Someone whose source photo is small, an old scan, a screenshot, or otherwise low-resolution — and wants it extended to a usable, consistent size without a separate tool.
/use/print-posterExtend Photos into Poster-Shaped Prints
Someone preparing a photo for a printed poster who needs it reshaped to a specific paper's aspect ratio without losing the subject to a crop.
Frequently asked questions
What is a wallpaper extender?
A wallpaper extender adds new image content beyond a photo's original edges so it fills a wallpaper-sized screen — wider for desktop, taller for phone — without cropping the subject. This is also called AI outpainting: instead of cutting pixels away, the model generates plausible new background around what is already there, matched to your target aspect ratio.
Is the wallpaper extender free to try?
You can try it free: sign in with Google for a one-time bonus of 5 credits — no card required. Each finished, unwatermarked wallpaper uses 1 credit; after that you need a credit pack or plan.
What resolution is the output?
Every extend outputs a standard, web-ready resolution in your chosen aspect ratio — fine for on-screen wallpapers and social posts. It is not a native 4K or print-DPI-verified file, and your device may scale it to fill the screen; if your source photo is already high-resolution, extending it will not make the file larger. We're evaluating adding a higher-resolution output stage — see our honest-limits article for where the current tool's ceiling is.
Extending vs. cropping a photo for wallpaper — which should I use?
Cropping removes part of your photo to fit a frame, which often clips the subject. Extending instead extends the frame outward and generates new background to fill it, so the subject stays whole and centered — the right choice for turning a phone photo into a full-screen wallpaper.
Will extending change my photo's subject?
It can. The tool generates new background around your photo, but exact preservation of the original is not guaranteed — details near the original edges can shift. Always compare faces, hands, and text with the original before using a result as a wallpaper or print.
What image formats does the tool accept?
JPG, PNG, and WEBP up to 10 MB. You can extend up to 5 photos in one run after signing in with Google.
What happens after my free credits?
Signing in with Google gives you a one-time bonus of 5 free credits. After that, add a credit pack or plan — each finished photo uses 1 credit, and failed jobs are refunded.
Can I use an extended photo commercially?
Yes — extended photos are yours to use as wallpapers, prints, banners, or social posts. You still need the rights to the original source photo; the AI extension does not grant new rights to someone else's photography.