All tools · Images · Resize image

Resize image.

Need an image at a specific size — a 800px-wide blog image, a square avatar, a smaller upload? This resizer scales your image to exact pixel dimensions using a high-quality filter, keeping the aspect ratio unless you tell it otherwise. It runs entirely in your browser, so your images are never uploaded.

Width (px)Height (px)

Keep aspect ratio (leave one field blank to auto-calculate)

Drop JPG, PNG, WebP or AVIF images here, or browse

Files stay on your device — nothing is uploaded.

i. Drop your images onto the box above.

ii. Enter a target width and/or height in pixels (leave one blank to keep the ratio).

iii. The image is resized locally with a Lanczos filter and re-encoded.

iv. Download the resized image — nothing was uploaded.

Frequently asked questions

Will resizing distort my image?

Not if you keep the aspect ratio on (the default). Enter just one dimension and the other is calculated to match. Uncheck it and set both to stretch to an exact size.

Can I make an image larger?

Yes, you can enter dimensions bigger than the original, though upscaling cannot add detail that was not there.

Is anything uploaded?

No. Resizing runs entirely in your browser and works offline.

Embed this tool

Add this free, no-upload tool to your own site with one line:

<iframe src="https://fileanvil.com/embed/resize-image/" width="100%" height="480" style="border:1px solid #ddd;border-radius:12px" title="Image Resizer"></iframe>