Resize WebP

Yes, resizing a WebP image and re-encoding it maintains the format compression advantages. A resized WebP will still be 25-35 percent smaller than an equivalent-quality resized JPG. The resizing process changes pixel dimensions, and the WebP encoder then compresses the new pixel data efficiently. For best results, resize from the highest-quality original (preferably lossless WebP or PNG) rather than from an already heavily compressed WebP, to avoid compounding quality loss.

This tool is designed for static WebP images. Animated WebP files contain multiple frames and require specialized tools that can resize each frame individually while maintaining timing and animation properties. If you need to resize an animated WebP, use desktop animation software or a dedicated animated image tool. For static WebP images, including those with transparency, this tool provides precise resizing with a live preview.

For website images, resize to the exact display dimensions used in your CSS or HTML. If your content area is 800 pixels wide, resize images to 800 pixels wide (or 1600 for retina displays). Serving images larger than their display size wastes bandwidth and slows page loads. For responsive sites, create multiple sizes (e.g., 400, 800, 1200 pixels wide) and use srcset to serve the appropriate size to each device. This tool creates one size at a time.

For best results, resize the original high-quality image to the target dimensions first, then convert or compress to WebP. This ensures the WebP encoder works with the exact pixel data that will be displayed, producing the smallest possible file. Converting a large image to WebP and then resizing it means the WebP encoder processes unnecessary pixels. If you already have a WebP that needs resizing, this tool handles it directly with good results.