Resize Image Online
Change an image to exact pixel dimensions in your browser. Use proportional measurements when you need to preserve its shape.
How to resize an image
- Choose an image from your device.
- Enter the output width and height in pixels.
- Select Resize to download the PNG result, then check its shape and clarity.
Keep the aspect ratio to avoid distortion
This tool uses the exact width and height entered. If those numbers have a different ratio from the original, the image will stretch. First use the Image Dimensions Checker to find the source ratio, then calculate a matching side with the Aspect Ratio Calculator.
Resize or crop?
Resize when the original and destination have the same shape. Use Crop Image when you need to change the shape without stretching, such as converting a landscape photograph to a square.
Image quality tips
- Start from the best original available.
- Avoid making small raster images dramatically larger.
- Resize before heavy compression.
- Check text, faces and fine edges at the actual display size.
Related guidance
Resize images without distortion • Choose website image sizes • Understand aspect ratios