PNG Output

Resize Image Online and Download PNG

Upload one image, set the width and height in pixels, and download the resized result as a PNG.

Drag & Drop your image here

or click to browse from your device

What This Tool Does

This image resizer changes one uploaded image to the width and height you enter. After an image loads, the page fills the width and height fields with the original dimensions and shows both the original and resized previews.

The resized image is created from a canvas and downloaded as a PNG file. Use this page when you need to change pixel dimensions, not when you need to crop part of an image or choose another output format.

Width, Height, and Aspect Ratio

Enter pixel values in the width and height fields. If a field is empty or invalid, the script falls back to the original image dimension for that field.

When Maintain aspect ratio is checked, editing the width automatically recalculates the height, and editing the height automatically recalculates the width. Clear the checkbox if you need separate width and height values.

Supported Input and Output

The upload control accepts image files that your browser can load, including common formats such as JPEG, PNG, and WebP. The resized download is always a PNG file with a .png filename.

The page does not set a fixed maximum width or height. Very large images or dimensions may depend on what your browser and device can handle.

How to Use the Resizer

  1. Click the upload area or drag one image onto the page.
  2. Enter the target width or height. Keep the aspect-ratio checkbox selected for proportional resizing.
  3. Review the resized preview and dimension label.
  4. Click Download Resized to save the PNG file, or use Reset and Upload New to start again.

Privacy and Processing

The resizer script reads the selected image in the browser, draws it to a canvas at the chosen dimensions, and creates a PNG data URL for download. The script does not contain an upload request for the selected image.

Common Uses

  • Changing a photo to a specific pixel width or height.
  • Making a smaller PNG copy while keeping the original file unchanged.
  • Preparing an image before using the compressor, cropper, or format converter.

Related Tools

Image Compressor

Reduce file size after resizing an image.

Image Cropper

Crop a selected area instead of changing the whole image size.

Image to JPG

Convert a resized image to JPG when you need that format.

Image to WebP

Convert a resized image to WebP for web projects.

Frequently Asked Questions

The resizer creates a PNG data URL and downloads the resized image with a .png filename.

The upload control accepts image files that your browser can load, including common formats such as JPEG, PNG, and WebP.

After an image loads, the fields are filled with the original width and height. Enter new pixel values to redraw the image at those dimensions.

When the checkbox is selected, changing width updates height, and changing height updates width, based on the original image ratio.

Yes. Clear the Maintain aspect ratio checkbox, then enter separate width and height values.

The page does not set a fixed maximum width or height. Very large dimensions may depend on what your browser and device can handle.

The resizer script reads the selected file in the browser, draws it to a canvas, and creates a PNG data URL. The script does not contain an upload request for the selected image.