Image Resizer
Resize JPG, PNG and WebP images by exact pixels or percentage, with the aspect ratio locked so nothing looks stretched. Everything runs on your device — no upload.
Click to choose an image or drag & drop it here
JPG, PNG, WebPOriginal: —
New size: —
How to resize an image
- Load your image by clicking the box or dragging it in.
- Choose whether to resize by pixels or by percentage.
- Enter the new width (with aspect ratio locked, the height follows), or drag the scale slider.
- Click Resize and download the new copy.
The original stays untouched — you always download a resized copy. Nothing is uploaded, so private images stay on your device.
Resize vs compress vs crop
These three often get mixed up, but they solve different problems. Resizing changes the width and height. Compressing keeps the dimensions but lowers the file size by adjusting quality. Cropping cuts away part of the picture to change its shape or focus.
- Need a specific width or height? Resize.
- Need a smaller file at the same dimensions? Compress.
- Need to cut out part of the image? Crop.
Often the best workflow is to resize down to the dimensions you actually need, then run the result through the compressor for the smallest possible file.
Frequently Asked Questions
How do I resize an image to exact dimensions?
Load your image, switch to the pixels mode, type the width you want, and if aspect ratio is locked the height fills in automatically. Enter both values if you need an exact size and are happy for the image to stretch. Then download the resized copy. It is the quickest way to hit a specific size a form or platform requires.
What does locking the aspect ratio do?
Locking the aspect ratio keeps the original proportions, so changing the width updates the height for you and the image never looks squashed or stretched. Unlock it only when you deliberately need a non-proportional size, which can distort the picture.
Will resizing reduce image quality?
Making an image smaller is generally clean and often improves file size with little visible loss. Enlarging an image beyond its original size cannot add detail that was never captured, so it looks softer the more you scale up. For best results, resize down from a high-resolution original rather than up from a small one.
Is resizing the same as cropping?
No. Resizing changes the overall dimensions while keeping the whole picture in view. Cropping removes part of the image to change its shape or focus. If you need to hit a size and keep everything visible, resize; if you need to cut out a region, that is a crop.
Are my images uploaded anywhere?
No. Resizing happens entirely in your browser using the Canvas engine, so your images never leave your device and are never stored on a server. That makes it safe for private photos and documents.
What size should a profile or listing photo be?
It depends on the platform, but many profile photos sit around 400 by 400 pixels, and web listing images often look best between 1000 and 1600 pixels on the long edge. Resizing to the size actually used avoids uploading an unnecessarily huge file and helps pages load faster.