imgresizer.org

Resize WebP

Resize WebP images online - keep the modern format or convert to JPG/PNG.

Your image is processed locally. Nothing is uploaded.

How to use Resize WebP

  1. 1

    Upload a WebP image

    Drop your WebP file onto the tool or click to select it.

  2. 2

    Enter target dimensions

    Type the width and height, or pick a preset, or use the percentage slider.

  3. 3

    Keep WebP output (optional)

    Set the output format to WebP to keep the smaller file size that WebP provides over JPEG.

  4. 4

    Download

    Click Download once the resize is done.

Resizing WebP images for the web

WebP has become the standard format for web images, offering smaller files than JPEG and PNG while maintaining equivalent visual quality. When resizing a WebP image, keeping the output in WebP preserves the file-size advantage throughout the workflow. Converting to JPEG or PNG during resize discards the compression benefits that make WebP attractive in the first place. The tool defaults to WebP output so the format remains consistent from source to final delivery.

Responsive web design frequently requires multiple versions of the same image at different sizes - a full-width version for desktop, a medium version for tablet, and a compact version for mobile. Producing these three sizes from a single WebP source, keeping the output in WebP, gives you a complete set of responsive image assets that load quickly across all breakpoints without re-encoding to a heavier format. After resizing, you can compress the WebP to trim any remaining bytes before deployment.

Transparency in WebP

WebP supports a full alpha channel, making it suitable for the same transparency use cases as PNG - logos, overlays, interface elements, and product images with non-rectangular shapes. Resizing a transparent WebP and keeping the output format as WebP preserves the transparency correctly. If the output needs to be served in environments that do not yet support WebP, PNG is the appropriate fallback format for transparent images, as JPEG does not support an alpha channel.

Frequently Asked Questions

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