Image Resizer
Resize images and photos online by width, height or percentage.
The interactive tool loads here when JavaScript is enabled. Files are processed locally in your browser.
How to use Image Resizer
- Choose a still image.
- Set pixel dimensions or a percentage. Keep aspect ratio locked to avoid stretching.
- Check the output dimensions, resize, and download.
Features
- Resize by exact pixel width and height or by percentage.
- Aspect-ratio lock to avoid stretching.
- Preview of the original and resized dimensions.
- Download as JPG, PNG or WebP without uploading.
Supported formats and limitations
Input and output: JPG, PNG or WebP.
- Enlarging adds pixels but not detail.
- Animated images are not supported.
Frequently asked questions
Does enlarging improve image detail?
No. Upscaling adds pixels, not original detail. Proportions are rounded to the nearest pixel, with a minimum of one pixel per side.
Will the format or metadata change?
The input format is retained when your browser supports encoding it; otherwise an error is shown. Browser encoding can remove metadata and normalize color profiles. Dimensions use the image’s displayed orientation.
Are files uploaded or animated images supported?
This tool processes locally. Animated PNG and WebP are rejected to avoid losing frames. Large inputs and outputs are limited for device safety.