Image Resizer
image toolsAIR-GAPPEDResize image dimensions with pixel precision and aspect ratio locking.
Upload an image to resize dimensions with custom pixel resolution or aspect ratio lock.
Max file size: 50 MB • In-Browser Execution
About Image Resizer
The OmniTools360 Image Resizer changes the width and height of an image to the exact pixel size you enter. It can keep the original proportions so the picture does not look stretched. The image is resized in your browser and never uploaded.
How does the Image Resizer work?
The tool redraws your image on a canvas at the new width and height, then saves it in the same format as the original. When aspect ratio is on, changing one side updates the other side automatically.
Explanation
How to use the Image Resizer
Select one image file (up to 50 MB).
Keep Maintain Aspect Ratio switched on to avoid stretching, or turn it off to set both sides freely.
Enter the new size in Width (px) or Height (px).
Check the Resizing to line to confirm the new size.
Click Download Resized Image.
Image Resizer examples
Frequently Asked Questions about Image Resizer
How do I resize an image without stretching it?
Keep the Maintain Aspect Ratio switch turned on, then type only the new width or the new height. The tool calculates the other side for you, so the image keeps its original shape. For example, a 4000 x 3000 photo set to 1200 pixels wide becomes 1200 x 900 pixels.
How do I resize a photo to a specific size in pixels?
Select your photo, then type the exact numbers in the Width (px) and Height (px) boxes. If you need both values exactly, turn off Maintain Aspect Ratio first. The Resizing to line shows the final size. Click Download Resized Image to save the photo at those pixel dimensions.
Does resizing an image reduce its quality?
Making an image smaller keeps it sharp but removes detail you cannot get back. Making it larger than the original often looks soft or blurry, because the tool stretches existing pixels and cannot add new detail. For the best result, start from the largest original you have and only reduce its size.
Can I resize images without uploading them?
Yes, this Image Resizer works fully in your browser. The picture is loaded and redrawn on your own device, and it is never sent to a server. This keeps personal photos private, and it works quickly because there is no upload or download wait beyond saving the final file.
Does resizing change the image format?
No, the resized image is saved in the same format as the original, such as JPG, PNG, or WebP. The file name starts with resized- and includes the new width and height. If you also want a smaller file size, run the resized image through the Image Compressor afterward.