Image resizer
Resize images by pixels or percent. Keep the aspect ratio, process several files at once and download the results.
Sizing for the web
Use the size an image is shown at, doubled for sharp high-density screens. A 600 px wide column needs a 1200 px image at most.
Output format
JPG, PNG and WebP keep their format. Other formats are saved as PNG.
Image resizer FAQ
Can I resize by pixels or by percent?
Both. Enter a width and height in pixels, or choose a percentage of the original size.
What does keep aspect ratio do?
It adjusts the second dimension automatically so the picture is not stretched. Turn it off to set an exact width and height.
Which format is the output?
The result keeps the original format for JPG, PNG and WebP. Other formats are saved as PNG.
Are my images uploaded?
No. Resizing runs in your browser and your pictures stay on your device.
What size should I use for the web?
Use the displayed size, doubled for sharp high-density screens. For example, a 600 px wide column needs a 1200 px image at most.