To resize an image, open the Image Resizer, choose your file and enter a target width; the height follows automatically to keep the aspect ratio. Everything happens in your browser, so the image is never uploaded.
How to use the Image Resizer
- Choose an image from your device.
- Enter the target width in pixels.
- Keep the aspect ratio locked unless you need to stretch it.
- Download the resized image.
Worked example
Resizing a 4000 x 3000 photo to a width of 1200 keeps the 4:3 ratio and produces a 1200 x 900 image.
Tips and common mistakes
- Only scale down when you can; enlarging a small image makes it look blurry.
- Resize to the size you will actually display, since smaller files load faster.
- Keep an original copy in case you need a larger version later.
Frequently asked questions
Is my image uploaded?
No. It is processed locally in your browser.
What does aspect ratio mean?
The proportion of width to height. Keeping it stops the picture from looking stretched.
Will quality drop?
Scaling down is generally fine, while scaling up loses sharpness.