Image resizer
Resize a picture to exact pixel dimensions, keeping its proportions if you want. Done in your browser, with no upload.
Runs in your browser. Nothing you enter is uploaded.
What it does
Change the pixel dimensions of a picture, for example to meet a size required by a form, a website or a social profile. With the proportions kept, typing one side fills in the other.
How to use it
- Choose a picture. Its current width and height are filled in.
- Type the new width or height. Untick the box only if you want to stretch the picture to a different shape.
- Press Resize, check the preview, and download.
Worked example
A 4000 × 3000 photo with the width changed to 1200 becomes 1200 × 900 when proportions are kept. For a square or other fixed shape, crop first and then resize.
How it works
The picture is drawn onto a canvas of the new size with high-quality smoothing and saved in its original format (JPG, PNG or WebP; other formats are saved as PNG). Making a picture smaller keeps it sharp. Making it larger cannot create detail that was not there, so the result looks softer.
Questions
Is my file uploaded?
No. The file is opened by your browser on your own device and the result is made there. Nothing is sent to us or to anyone else.
What is the difference between resizing and cropping?
Resizing keeps the whole picture and changes how many pixels it has. Cropping cuts part of the picture away.
Does resizing change the file size?
Yes. Fewer pixels means a smaller file. To control the file size more closely, use the image compressor.
Why does my picture look stretched?
The proportions box was unticked and the new width and height have a different shape from the original.
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