Image Resizer
Resize any JPG, PNG or WebP image to exact pixel dimensions, with an optional aspect-ratio lock so it never looks stretched. Everything runs locally with the canvas API, so your images are resized instantly and never uploaded to a server.
- Resize by pixels with aspect-ratio lock
- Works with JPG, PNG & WebP
- Pick the output format & quality
- Local processing — no uploads
How to use the Image Resizer
- 01
Add an image
Drop in a JPG, PNG or WebP file.
- 02
Set dimensions
Enter a width or height (ratio locks by default).
- 03
Choose format
Keep the format or convert it.
- 04
Download
Save the resized image to your device.
Frequently asked questions
Will resizing reduce image quality?+
Downscaling stays sharp because the browser resamples the pixels. Upscaling beyond the original size can look soft — for best results, resize down rather than up.
Are my images uploaded?+
No. Resizing happens entirely in your browser with the canvas API, so even large or private images never leave your device.
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