Image resizer
Get the right dimensions. Keep the right proportions.
A small task starts here.
Drop an image here, paste it, or choose from your device.
Up to 30 MB · PNG, JPEG, or WebP · Processed locallyResult
Choose a file and the result appears here automatically.
Image resizer, without the extra steps.
Resize an image by width, by height, or by both. The tool reads the original pixel dimensions from your file and starts there, and the link button keeps the aspect ratio while you type. This is useful for profile pictures, blog images, and upload forms with pixel limits. A JPEG stays a JPEG so a shrunk photo really is a smaller file; everything else is exported as PNG.
How to use this tool
- 1Choose an image and see its current pixel size.
- 2Enter a target width or height, or pick a percentage.
- 3Download the resized image.
When Image resizer is the right tool
- A layout, template, or listing specifies a maximum width.
- A camera photo is far larger than anywhere it will be displayed.
- An upload limit is measured in pixels rather than bytes.
- A batch of images needs a consistent width for a page or document.
- An avatar slot wants an exact square and you can accept the stretch.
Aspect ratio and upscaling
The link button between the two fields is on by default: type a width and the height follows, type a height and the width follows, so the picture keeps its proportions. Unlink it only when a slot demands exact numbers and you accept the stretch. Resizing down is genuinely useful — it removes pixels the display never needed. Resizing up cannot invent detail; the browser interpolates between existing pixels, which produces a softer image at a larger size.
Pixels are not the same as file size
Halving the width quarters the pixel count, which usually cuts file size by a similar order. The output format matters as much as the dimensions: a photo re-encoded as PNG can end up larger than the JPEG you started with, so a JPEG stays a JPEG here and everything else becomes PNG. If the goal is a specific byte limit rather than a specific dimension, resizing and then compressing gives more control than either step alone.
A few quick answers.
Choose an image and see its current pixel size. Enter a target width or height, or pick a percentage. Download the resized image.
Tool inputs are processed in your browser. Crate has no upload endpoint and no accounts. Downloaded site assets and a cookie-free page-view count still require a connection; your files and text are not included in those requests.
Resizing does not crop. With the ratio unlocked you can set width and height independently, which stretches the picture. Enlarging cannot invent additional detail, and the tool warns when you ask for it. Output is limited to 40 million pixels.
You can set a larger width, but the browser can only interpolate between existing pixels. The result looks softer rather than more detailed, so upscaling is rarely worth it.
Not while the link button is on, which is the default: the other dimension is recalculated from the one you type. Turn the link off and the two fields become independent, which does allow a stretched result.