Resize Image Online – Change Dimensions for Free
Resize Image Online – Free, Keep Aspect Ratio
Need to make an image bigger or smaller? This tool lets you resize any image by setting exact pixel dimensions or scaling by percentage. It keeps the aspect ratio locked by default so your image doesn't get stretched or squished. Upload, resize, and download — works with JPG, PNG, and WebP.
How it works
Upload the image
Add a JPG, PNG, or WebP file. Large phone photos may take a moment to preview because they contain millions of pixels.
Set width or height
Enter the target size and keep aspect ratio on for normal resizing. Use crop tools instead if you need an exact square or banner shape.
Download the resized file
Save the smaller image, then check both dimensions and file size before uploading it to a form, website, or social platform.
Frequently asked questions
About Resize Image
Resizing changes the pixel dimensions of an image. That is different from compression, which changes how heavily the file is encoded. If a photo is 4032 x 3024 but a form only needs 800 x 600, resizing is the cleanest fix. You remove pixels nobody will see instead of damaging the image with extreme compression. Use this tool for profile photos, product images, thumbnails, ID uploads, social posts, and website assets. Keep the aspect ratio locked unless you intentionally need an exact crop. Stretching a face, logo, or product photo to fit a box usually looks worse than cropping or adding padding. After resizing, check the file size. If it is still too large for the upload limit, use Compress Image next. Resize first, compress second is usually the better order.
Updated June 2026: Added exact workflow guidance for profile photos, product images, social uploads, and compression-before-upload use cases.
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