How to Resize an Image to Exact Dimensions Without Distorting It

Forcing an image into an exact width and height, without accounting for its original proportions, is the single most common cause of a stretched or squashed-looking photo.

Why images get distorted when resizing

Every image has an aspect ratio — the relationship between its width and height (a 1500×1000 photo has a 3:2 ratio). If you resize it to a target width and height that don't share that same ratio, the image has to stretch non-uniformly to fill both dimensions exactly, which visibly distorts faces, logos and straight lines.

How to avoid distortion

Lock the aspect ratio. Enter either a target width or height, and let the other dimension be calculated automatically to preserve the original proportions — this guarantees no stretching. If you genuinely need an exact width and height that don't match the original ratio (say, for a fixed banner size), you'll need to crop the image to that ratio first, rather than stretching it to fit.

How to resize an image

Choose a JPEG, PNG or WebP image in the Image Resizer.
Enter a target width and/or height.
With "Maintain aspect ratio" on, the tool calculates the other dimension for you.
Download the resized image.

Resizing vs. compressing — not the same thing

Resizing changes an image's pixel dimensions (how many pixels wide and tall it is). It's a different operation from compression, which reduces file size at the same dimensions by re-encoding more efficiently. A photo can be resized smaller and then compressed for the smallest possible file — our Image Compressor handles that second step.

FAQ

What happens if I make an image larger than its original size? Enlarging an image beyond its original resolution doesn't add real detail — it stretches existing pixels, which can look soft or blurry. Resizing works best at or below the original dimensions.

Does resizing reduce file size? Usually yes, since fewer pixels generally means a smaller file, but resizing and compression are still separate concerns — a resized image can still benefit from compression afterward.

Is my image uploaded to a server to resize it? No — resizing happens entirely in your browser using the Canvas API, so the image never leaves your device.

Resize an image now

Try the free Image Resizer — runs entirely in your browser, no upload. See more image tools.