Free Wallpaper Resizer & Cropper — Fit Photos to Any Screen
Turn an existing photo into a correctly sized wallpaper for your phone, desktop, laptop, tablet, TV, or ultrawide display. This private wallpaper maker previews each crop before you download; it is also a practical wallpaper generator for creating a matched set from one photo.
1 Upload a photo
Drop photos here or press Enter to browseJPG, PNG, WebP, or GIF · up to 5 images · 40 MB each
No images loaded.
3 Adjust every crop
Upload a photo to see the active preview here. Each selected size gets its own adjustable crop.
Drag or use the arrow keys to pan. Use the visible zoom controls, slider, or mouse wheel. Safe-area guides are previews only and are never exported.
2 Choose a device or size
1 output selected
No matching preset. Enter your exact screen size below.
Enter my screen size
Use the display’s native pixel dimensions. The aspect ratio is calculated automatically.
Advanced batch selection
Selecting many high-resolution outputs can be slow or exceed mobile memory.
4 Download
0 filesJPG0 megapixels of work
Format and quality
How to resize a photo for wallpaper
Upload: Upload a photo or choose Try an example.
Select a device or size: Search for a device family, choose a preset, or enter the screen’s native pixel dimensions.
Position the image: Inspect every output preview, choose a fit mode, and pan or zoom each crop independently.
Download: Download one wallpaper directly or export multiple images and sizes as a ZIP.
Unexpected crop or soft output?
Use Fit Entire Image to keep every edge. If the quality note shows upscaling above 1×, choose a smaller preset or start with a larger photo. Wallpaper settings on the device may apply an additional Fill or motion crop.
One landscape photo, three ready-to-use crops
Every selected output has its own framing. These quick examples show why a phone crop, a desktop crop, and an ultrawide crop should be inspected separately.
Phone
→
Keep the subject below the clock and above the dock.
Desktop
→
A matching 16:9 source may need little or no crop.
Ultrawide
→
The shallow frame needs an independent vertical position.
Wallpaper size decision guide
Size guide reviewed: 15 July 2026
The best wallpaper size is the display’s native pixel resolution. Presets are convenient starting points, but device families change; the aspect-ratio principles below remain useful.
Device type
Orientation
Common ratio
Example resolution
When to use it
Phone
Portrait
19.5:9 or 20:9
1179×2556 or 1080×2400
Modern iPhone or Android lock/home screens; exact models vary.
Desktop / TV
Landscape
16:9
1920×1080 or 3840×2160
Most monitors and televisions.
Laptop
Landscape
16:10 or 3:2
2560×1600 or 3000×2000
Many MacBook, Surface, and productivity displays.
Tablet
Both
4:3 or 16:10
2048×2732 or 2560×1600
Create portrait and landscape crops if the tablet rotates.
Ultrawide
Landscape
21:9
3440×1440
Single ultrawide monitors.
Super ultrawide
Landscape
32:9
5120×1440
Dual-wide monitors or equal dual-monitor spans.
How to find the native resolution
Windows: Settings → System → Display → Display resolution.
macOS: System Settings → Displays; enable the resolution list if needed.
iPhone, iPad, and Android: look up the manufacturer’s specifications for the exact model. A browser’s reported CSS size is not necessarily the panel’s pixel resolution.
Aspect-ratio and resizing mathematics
An aspect ratio compares width with height. When one pixel dimension is known:
20:9 phone example: 2400 × 9 ÷ 20 = 1080, so portrait dimensions are 1080×2400.
Cropping removes edge content to change composition. Resizing changes pixel dimensions. Downscaling reduces pixels and usually stays sharp; upscaling creates more pixels by interpolation but cannot create genuine source detail. Fit modes preserve the image’s proportions, so stretching is avoided.
Wallpaper resizer FAQ
How do I find my screen resolution?
On Windows, open Settings > System > Display and read Display resolution. On macOS, open System Settings > Displays. On iPhone, iPad, or Android, check the manufacturer's specifications for your exact model. Use the native pixel resolution when it is available.
How can I fit the whole photo without cropping?
Choose Fit Entire Image. Empty space is kept around the photo; choose Blurred Background or Solid Background if you want that space filled. The tool never stretches the photo because stretching distorts faces, text, and shapes.
Why does my wallpaper still zoom when I apply it?
The operating system may apply perspective, parallax, scrolling, or a Fill setting after download. Disable motion or perspective effects where available and choose Fit rather than Fill in the device's wallpaper settings.
Do my images leave this device?
No. Image decoding, cropping, and encoding happen in this browser tab. The files are not uploaded by this tool, and its temporary in-memory copies disappear when you close or reload the page.
Do downloaded wallpapers have a watermark?
No. Downloads contain only your edited image and the background mode you selected; no watermark or branding is added.
How does batch export work?
One image and one selected output download directly. Multiple images or outputs are encoded one at a time and placed in a ZIP file. The progress panel shows the current job and lets you cancel between files.
Why does an output look blurry?
A small source cannot gain genuine detail when enlarged. Check the scale warning beside each crop: a value above 1× means upscaling. Choose a smaller output, use a larger original, or avoid extra zoom.
Are lock-screen and home-screen dimensions different?
They usually use the same screen pixels, but their clocks, widgets, docks, notches, and scrolling behavior differ. Use the phone lock-screen or home-screen guide to keep the subject clear of likely interface areas.
What should I use for multiple monitors?
For one image spanning equal monitors, add a custom output whose width is the sum of their horizontal resolutions and whose height is one monitor's height. Mixed resolutions or operating-system scaling may need separate wallpapers for predictable alignment.
What happens when a tablet rotates?
Portrait and landscape need different crops. Select both tablet orientations, adjust each preview independently, and export both. The device may crop again if it uses one image for both orientations.
