Will resizing distort my image?

Not if you keep "Lock aspect ratio" enabled — the height will automatically adjust to match any width you enter (and vice versa) so proportions stay correct.

What file format is the resized image saved as?

The resized image downloads as a JPEG file, which keeps file size reasonable while preserving image quality.

Image Tools

Image Resizer

Resize an image to exact pixel dimensions, with optional aspect-ratio lock.

Drag an image here, or

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About this tool

Upload an image and set a new width and height in pixels. Lock the aspect ratio to resize proportionally without distortion, or unlock it for exact custom dimensions. Everything runs locally in your browser.

How to use this tool

1
Upload an image
Drag a file onto the drop zone, or click to choose one.
2
Set width and height
Enter new pixel dimensions; keep "Lock aspect ratio" on to avoid distortion.
3
Resize and download
Click resize, preview the result, then download the resized image.

Frequently asked questions

Will resizing distort my image?: Not if you keep "Lock aspect ratio" enabled — the height will automatically adjust to match any width you enter (and vice versa) so proportions stay correct.
What file format is the resized image saved as?: The resized image downloads as a JPEG file, which keeps file size reasonable while preserving image quality.

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