How to Resize an Image to Exact Dimensions
The right pixel size depends on where the image will appear. Here is a simple way to pick it.
What is the Image Resizer?
Enter a target width and height, then choose whether to keep the original proportions or stretch to the exact size. Keeping the aspect ratio fits the image inside your target box without distortion. The resized copy is created in your browser and offered as a download.
How to use it
- Upload an image
- Enter width, height, and sizing mode
- Download the resized image
Worked example
An 800 by 600 target with aspect ratio kept produces a fitted image inside that box, for example 800 by 533 for a 3:2 photo, without stretching.
Should I keep the aspect ratio when resizing?
Yes for photos, unless a platform demands an exact size. Keeping the ratio avoids stretched faces and squashed shapes.
Frequently asked questions
Will resizing stretch my photo?
Only in Stretch mode. Keep aspect ratio mode preserves proportions and fits inside the target box.
Can I enlarge a small image?
Yes, but enlarging beyond the original size will soften it, since no new detail is created.