Resize Image
Change the width and height of an image. Runs in your browser — nothing is uploaded.
About Resize Image
Resize Image changes a picture's pixel dimensions to the exact width and height you need, with an option to lock the aspect ratio so nothing stretches. It runs in your browser, costs nothing, and your images are never uploaded.
Almost every platform has an opinion about image size. Profile photos want a square, banner images want a specific ratio, marketplace listings reject anything over a certain width, and forms asking for a passport photo specify exact pixel dimensions. Uploading something the wrong size gets it cropped by an algorithm that will inevitably cut off someone's head, or rejected outright.
Resizing is also the most effective way to make a file smaller. A photo straight from a phone might be 4000 pixels wide, and if it will be displayed at 800 pixels then three quarters of that data is doing nothing but slowing the page down. Reducing the dimensions cuts the file size dramatically before any compression is applied, which is why resizing first and compressing second gets much better results than compressing alone.
How to Resize Image
- Select the image you want to resize.
- Enter your target width or height.
- Keep the aspect ratio locked unless you specifically need to distort the image.
- Check the preview to confirm nothing important is affected.
- Download the resized image.
Tips & common problems
Keep the ratio locked
Setting width and height independently stretches the picture, and stretched faces are immediately obvious. If you need a specific shape, crop to it first with Crop Image, then resize.
Shrinking is safe, enlarging is not
Reducing dimensions discards data cleanly and looks sharp. Enlarging has to invent pixels that were never captured, so the result is always softer — see Upscale Image if you must go bigger.
Double the size for retina screens
For web images, exporting at twice the display size keeps them crisp on high-density phone and laptop displays. An image shown at 400px should be exported at 800px.
Resize then compress
Doing it in that order gives a much smaller file than compressing a full-resolution image, and the result looks better too.
Frequently asked questions
How do I resize an image for free?
Select it, enter the new dimensions and download. No signup, no watermark and nothing uploaded.
Can I keep the aspect ratio?
Yes. Lock the ratio and setting one dimension updates the other automatically, so the image scales without distortion.
Will resizing reduce the quality?
Making an image smaller keeps it looking sharp — you are discarding surplus detail. Making it larger cannot add detail that was never there, so enlarged images look softer.
What size should I use for a website?
Match the display size, then double it for high-density screens. A photo shown 800px wide should be exported at around 1600px, then compressed.
Are my images uploaded?
No. Resizing runs entirely in your browser and the file never leaves your device.
Can I resize several images at once?
Process them one at a time here. Since nothing uploads, each one takes only a couple of seconds.