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Upload an image to display
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Online Image Resizer
Change image width and height, lock aspect ratio, resize by percentage or pixels. All processing in your browser, images never leave your device.
Click or drop image
Supports JPG / PNG / WebP
All tasks run in your browser
Never uploaded · Privacy protected
Adjust settings to see result
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How to Resize Images
Upload Image
Click the upload area or drag an image in. Supports JPG, PNG, and WebP. Images stay in your browser.
Enter Dimensions
Set width and height in pixels. The current dimensions are shown as a reference for accurate resizing.
Lock Ratio or Percentage
Enable aspect ratio lock to keep proportions, or switch to percentage mode to scale by a factor (e.g. 50%).
Download
Preview the resized result in real time. Click Download to save the new image when satisfied.
Image Resizing FAQ
Does the resizer upload images to a server?
No. ImgLab image resizing runs entirely in your browser. Images are never uploaded, ensuring privacy.
Will resizing distort the image?
No. Enable Lock Aspect Ratio to keep width/height proportion. The image scales smoothly without stretching.
Can I lock the aspect ratio?
Yes. Toggle the lock and changing one dimension automatically updates the other to maintain proportion.
Can I resize by percentage?
Yes. Switch the unit to percentage and enter a value (e.g. 50%) to scale the image proportionally.
Can I resize multiple images at once?
Yes. Use the batch tool to apply the same resize settings to multiple images and download as a zip file.
Does it work on mobile?
Yes. The page is fully responsive with touch support, so you can resize images anywhere on your phone.