Adawati · Free online tool

Resize Image

Set the dimensions you need, keep the proportions, and prepare an image for its destination.

Open the Resize Image tool →

How to Resize an Image Online to the Exact Dimensions You Need

A photo can be sharp and attractive yet still be the wrong size for a website, online form, document, or social post. Resizing changes the image’s pixel dimensions. It is different from cropping: resizing scales the whole image, while cropping removes part of it.

With Adawati’s Resize Image tool, you can scale an image by percentage or enter pixel dimensions. A locked aspect ratio helps keep the original proportions.

Resize by percentage or by pixels?

Choose percentage when you want a quick relative change. For example, setting an image to 50% makes both its width and height half as large. Choose pixel dimensions when a form or design brief specifies an exact width and height.

When the aspect-ratio lock is enabled, changing the width automatically adjusts the height to match the source proportions. This avoids stretching faces, logos, and other objects. Turn the lock off only when you intentionally need a non-proportional shape.

Step-by-step: resize with Adawati

1. Open the Resize Image tool and select one or more images.
2. Choose percentage mode for a relative scale, or pixel mode for a specific output size.
3. In pixel mode, enter the target width. Keep the aspect-ratio lock on for a proportional result; the height will adjust accordingly. If the destination requires an exact width and height, confirm that the image will not look stretched before unlocking it.
4. Select the output format: keep the original format or choose a supported option such as PNG, JPG, or WebP.
5. Adjust quality where available, run the resize, and check the displayed output dimensions and file size.
6. Download the result and confirm it fits the field, page, or design where you plan to use it.

The tool uses your browser to process the selected image. If you choose to enlarge a small image, remember that extra pixels do not restore detail that was not in the original.

Choose dimensions for the destination

Start with the requirement from the site or application that will receive the image. A profile-photo uploader may specify a square image, while a page banner may require a wide crop. If the destination gives only a maximum size, keep the image’s proportions and make sure neither side exceeds that limit.

For social networks, check the platform’s current guidance before exporting; recommended dimensions can change. For printing, pixel dimensions matter together with the physical print size, so use the print provider’s specifications.

Common resizing mistakes

• Stretching: unlocking the ratio can distort people, products, and logos.
• Upscaling too far: enlarging can make edges look soft or pixelated.
• Ignoring file size: an image can have the right dimensions but still be too large to upload.
• Choosing a format without checking transparency: JPG does not retain transparent backgrounds; use PNG or a supported transparent WebP when needed.

Frequently asked questions

Is resizing the same as cropping? No. Resizing scales the complete image; cropping trims its edges.

Can I enter exact pixel dimensions? Yes. Use pixel mode and enter a width and height; keep the ratio locked if you want to preserve proportions.

Will enlarging improve quality? No. It creates a larger pixel grid but cannot recover missing image detail.

For the cleanest result, begin with the destination’s required dimensions, keep the aspect ratio unless you have a reason not to, and inspect the output before using it.