4K UHD Desktop Wallpaper Resizer

Native resolution: 3840 × 2160 · Aspect ratio: 16:9 · Category: desktop

Resize any image to fit the 4K UHD Desktop display at its native 3840×2160 resolution. Simply upload your wallpaper and download the perfectly-sized version. The tool runs entirely in your browser — your image never leaves your device.

1️⃣ Upload your image

📁
Drop image here or click to browse
JPG · PNG · WebP · GIF · Any size
🔒 Your image never leaves your browser — 100% client-side processing
Or paste image URL

2️⃣ Choose target devices (1 selected)

📱 Phones (19)

📱 Tablets (3)

💻 Laptops (4)

🖥️ Desktops (7)

⌚ Watches (2)

3️⃣ Resize & download

About the 4K UHD Desktop display

The 4K UHD Desktop was released in 2015 with a 3840×2160 display and 16:9 aspect ratio. To get the best wallpaper quality without automatic cropping, your image should match these exact dimensions.

How to resize your wallpaper for 4K UHD Desktop

  1. Upload any image (JPG, PNG, WebP) using the drop zone above.
  2. The 4K UHD Desktop preset is already selected.
  3. Choose your fit mode — Crop for full-screen or Contain to preserve the whole image.
  4. Click Resize. Your 3840×2160 PNG downloads instantly.
  5. Set as your 4K UHD Desktop wallpaper — no automatic cropping.

Also great for these 4K UHD Desktop tasks

Other desktop resizers

Full HD Desktop (1080p)
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2K/1440p Desktop
2560 × 1440
8K UHD Desktop
7680 × 4320
Ultrawide 21:9 (1440p)
3440 × 1440
Super Ultrawide 32:9 (5K)
5120 × 1440
iMac 24" (M1/M3)
4480 × 2520