Resize Image
Change an image's dimensions — either by scaling it to 25%, 50% or 75%, or by setting an exact width in pixels with the height following automatically. This is about the picture's actual width and height, which is a genuinely different thing from its file size in kilobytes, and forms sometimes specify one, the other, or both.
Before you start
Does resizing an image reduce its file size?
Resizing changes pixel dimensions, which often reduces file size too, but it does not guarantee a specific KB limit. Set a width or a percentage; height follows the original proportions. Enlarging a small image cannot recover missing detail.
For a strict KB limit, finish with Image Size Reducer. Use Image Cropper when the required shape differs from the original.
🔒 This file is processed on your device. Nothing is uploaded to any server.
How to resize an image
- Select your image (or several at once).
- Choose a percentage, or type an exact width in pixels.
- Download the resized image.
When you'd use this
- Forms with pixel rules — An application that specifies exact dimensions for a photograph.
- Website images — A 4000-pixel-wide phone photo is wasteful on a page that only ever displays it at 800.
- Profile pictures — Trimming an oversized image down to what a site actually expects.
- Faster page loads — Fewer pixels means less for a visitor's browser to download.
Good to know
- Proportions are always preserved — Set the width and the height is calculated to match, so the picture never ends up stretched or squashed.
- Enlarging cannot add detail — Scaling a small image up makes it look soft — the missing detail was never recorded in the file to begin with.
- Dimensions are not file size — Resizing usually reduces file size as a side effect, but if a form gives you a limit in KB, use Compress Image for that.
- Batch friendly — Select several images and the same setting is applied to every one of them.
Frequently asked questions
Will resizing distort my image?
No — the height is always scaled to match, so the image keeps its original proportions.
Can I resize several images at once?
Yes — select multiple images and they're all resized the same way, ready to download individually or all at once.
What is the difference between resizing and compressing?
Resizing changes how many pixels wide and tall the picture is. Compressing keeps the dimensions and reduces the file size in kilobytes. When a form specifies both, resize first and then compress the result.
Can I set the height instead of the width?
The exact-size mode works from the width, with height calculated to keep the proportions intact. If you need to control the height specifically, use Image Cropper to set the shape first.
Will resizing lose quality?
Making an image smaller keeps it looking sharp. Making it larger cannot invent detail that was never captured, so enlarged pictures always look softer than the original.