Drag and drop images or click the above select field to add images.
Enter a new target width or height size for your image.
Click the "Resize" button to resize the image or images.
Click the Download button to download each image.
Why resizing images is important for site performance important?
Scaling down and reducing image size will optimize images full-size images. Over sized images can account for a large part of page speeds issues. If your site is taking 5 seconds to load you could be loosing up to 90% of your mobile users.
What are the best size images for the web
As a general rule if your image will be displaying / rendering at 1000px wide then the actual / intrinsic size of the image should be about 1500px or one third to half larger than the display size.