Wallpaper Resizer
A photo set as wallpaper gets stretched or awkwardly cropped when its shape doesn't match the screen. Resizing it to the screen's exact resolution first gives a clean, sharp background.
- Never uploaded
- Instant, no sign-up
- Works offline
Drop images here
Files stay in your browser — nothing is uploaded.
About this tool
Pick your screen — Full HD, 2K, 4K, ultrawide, iPhone, Android or iPad — and the photo is center-cropped and scaled to fit exactly.
How it works
- 1
Add your photo.
- 2
Choose the screen size.
- 3
Download and set it as your wallpaper.
Features
- Desktop and mobileFrom 1080p monitors to 4K, ultrawide, phones and tablets.
- No stretchingThe photo is cropped to the screen's shape, then sized.
- Lossless optionSave as PNG for the sharpest wallpaper.
- Private by designEverything runs on your device. No uploads, no account, no watermark, and EXIF/GPS data is stripped from the result.
Supported formats
Input: JPG, PNG, WebP, GIF (first frame), BMP, SVG, AVIF, plus TIFF/HEIC where your browser can decode them. Output: PNG, JPG or WebP.
Frequently asked questions
What resolution is my screen?
On Windows: Settings → Display. On a Mac: Apple menu → About This Mac → Displays. On phones, search your model's screen resolution.
Will a small photo look good at 4K?
Small photos are enlarged and may look soft. Use the Image Upscaler first for better results.
Which part of the photo is kept?
The center. Crop manually in the editor if your subject is off to one side.
Are my images uploaded to a server?
No. Files are decoded, processed and re-encoded by your browser using the canvas API and Web Workers. Nothing is sent to any server, and there is no account or storage. Closing the tab discards everything.
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Need more than one tool?
The full editor combines cropping, adjustments, filters, text, shapes and layers in one place.