Resize an image for websites, forms and sharing
Dimensions describe the number of pixels in an image, such as 1200 × 800. File size describes how much storage the image uses, such as 150KB. Reducing dimensions can lower file size, but may also make the image less suitable for printing or zooming.
How to use the online image resizer tool
Choose your image and set a maximum dimension in the tool. Use a target size if a website has a KB limit. Preview the output and check that it is still large and clear enough for its intended use.
Frequently asked questions
What dimensions should I choose?
Use the dimensions required by the website or form when they are provided. Otherwise, keep enough pixels for the display size and avoid unnecessary upscaling.
Does resizing always reduce file size?
Usually reducing dimensions helps, but the final file size also depends on the image format, compression settings and image content.
More image tools
Need a different file size or format? Explore these ZipMyPix guides:
Go to the ZipMyPix compressor · About · Privacy · Terms · Contact