Resize images to a chosen width, height, or bounding box. Keep the aspect ratio enabled to avoid stretching.
Upload your images
Drag and drop your files here, or click the button below to browse your computer
You can Process up to 10 images at a time.
Supported formats: Image formats supported by your browser, including JPG, PNG, WebP, GIF, SVG, and HEIC
Image processing runs in your browser.
How to use Image Resizer
Choose an image to see the width and height controls.
Enter one dimension to calculate the other automatically, or enter both as a maximum box with Keep aspect ratio enabled.
Turn off Keep aspect ratio only when you intentionally want to stretch the image to exact dimensions, then process and download.
What to know
Dimensions are measured in pixels. A square source can fill a square target; a portrait or landscape image may have a different final dimension when fitting inside a box.
The output is drawn to a browser canvas. Depending on the input format and browser support, metadata and some format-specific features may not be preserved.
File handling: Image resizing happens locally in your browser. This tool does not upload the selected image to a remote media-processing service.