Image Optimizer

Resize images online

Set max width or height to scale images down. Combine resize with compression for smaller files.

Practical resizing examples

Resize an image for Instagram

Set a maximum width or height to make a large photo easier to upload and use in a social post.

Create a smaller blog image

Scale down an oversized photo, keep its aspect ratio, and optionally compress it before publishing.

How to resize images

  1. 1

    Upload image

    Add a PNG, JPG, or JPEG up to 20 MB.

  2. 2

    Set dimensions

    Enter max width or height — aspect ratio stays proportional.

  3. 3

    Download

    Save the resized image to your device.

Resize benefits

Proportional scaling

Images scale inside your max bounds without cropping.

No upscaling

Images won't be enlarged beyond their original size.

Plus compression

Adjust quality while resizing for even smaller files.

Privacy

Your image is uploaded to create the resized download. We do not keep uploaded files after processing.

Image resizer FAQ

Can I upscale images?
No. The tool only scales down to avoid quality loss.
Aspect ratio preserved?
Yes. Max width and height fit the image inside the box.
Resize and compress together?
Yes. Set dimensions and quality on the same screen.

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