KBSnap
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Resize image to 2560×1440

16:9 · 3.69 MP · prints at 21.7×12.2 cm at 300 dpi

  • No upload
  • Exact target size
  • Batch ready

Drag images here, or click to choose

JPG / PNG / WebP / HEIC · up to 25MB each · batch supported

Files never leave your device — everything runs in your browser.

Width
px
Height
px
Fit mode
Output format
Allow upscaling
Quality
88%

What 2560×1440 is used for

  • QHD wallpapers
  • High-DPI screenshots for retina displays
  • Print at 21.7×12.2 cm at 300 dpi
  • Large hero images on 4K screens

16:9, 3.69 MP. At this size every re-encode is visible if you do it twice — start from the original.

Pixels are not DPI

A file with 2560×1440 pixels carries no physical size until someone prints it. At 300 dpi that is 21.7×12.2 cm; at 150 dpi it is twice as large and half as sharp. Forms that ask for “300 dpi” and “2560×1440 px” are asking for the same thing in two languages — this tool satisfies both, and stamps the requested dpi into the file.

Why it will not upscale by default

Padding a 400×300 image to 1920×1080 does not add detail: it invents pixels by interpolation, and the result looks soft at every zoom level. The upscale switch exists for the cases where you truly must (a platform that rejects anything smaller), but the honest answer is to start from a bigger source.

Cropping, not stretching

Changing the aspect ratio is a destructive decision. “Cover” fills the frame and cuts the overflow; “contain” keeps everything and adds padding; “stretch” distorts on purpose. Default is cover with a centre anchor, which is right for photos and wrong for documents — pick per batch.

Frequently asked questions

Do I lose quality going to 2560×1440?
Downscaling with high-quality smoothing loses very little, and often looks cleaner than the original because camera noise averages out. Upscaling always softens. Either way the output is re-encoded once, so avoid repeating the process.
Can I keep the original aspect ratio?
Yes — that is the default behaviour with “cover”. Type only one dimension and the other follows. Turn on “allow upscale” only if the source is smaller than 2560×1440.
Does resizing also compress?
Yes. Re-encoding to JPG or WebP reduces the file size as a side effect, usually far more than the dimension change alone. If you need an exact byte target, use the compression tool instead — it searches for it.
Is this safe for confidential images?
The image is decoded and re-encoded inside your tab. No request carries the file anywhere; the only network activity on this page is loading the page itself.

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