Image Resizer
Resize images by pixel dimensions or percentage. Preserves aspect ratio.
Click to upload image
About the Image Resizer
This image resizer scales an image to exact pixel dimensions with the aspect ratio locked by default, so nothing is stretched. Enter one dimension and the other follows, or unlock the ratio when a platform demands a specific size.
An image resizer is the fix for a photograph that is far larger than the space it appears in. A 4000-pixel-wide camera image displayed in a 800-pixel column still downloads at full size, which is one of the most common reasons a page feels slow on mobile.
Aspect ratio stays locked unless you unlock it, so entering a width fills in the matching height and the image keeps its proportions. That prevents the stretched, subtly wrong look that comes from typing both numbers independently.
For reference: around 1920 pixels wide suits a full-width hero, 800 to 1200 for images inside content, and 400 or less for thumbnails. Resizing before compressing usually beats compressing alone, because there are simply fewer pixels to store.
How to use the Image Resizer
- Upload your image. Drag the file onto the drop zone or browse for it.
- Enter the target size. Type the width you need; the height follows automatically.
- Unlock the ratio if required. Only unlock it when a platform demands exact non-proportional dimensions.
- Download. Save the resized image.
Image Resizer features
- Resize to exact pixel width and height
- Or scale by percentage
- Aspect ratio locked by default, so nothing is stretched
- Ratio can be unlocked when a platform demands exact dimensions
- Download the resized image
Frequently asked questions
How do I avoid distorting the image?
Leave the aspect ratio locked and set one dimension — the other follows automatically. Unlock it only when a platform insists on exact dimensions, and expect to crop rather than stretch if the ratio does not match.
Should I resize or compress?
Resize first, then compress. Serving a 4,000-pixel photograph into a 800-pixel slot wastes most of the file no matter how well it is compressed, so cutting the dimensions is where the real saving is.
Does enlarging an image improve it?
No. Scaling up invents pixels from the ones already there, so the result is softer than the original at best. Always start from the largest version you have.
What size should web images be?
Roughly twice the display size to stay sharp on high-density screens, and no more. A hero image shown at 800 pixels wide wants around 1,600 — beyond that the extra bytes buy nothing visible.
Is my image uploaded?
Yes, resizing happens on our server and the file is not retained afterwards.