How to resize a WebP image
WebP is a modern format that stores images efficiently, so a resized WebP is both smaller in dimensions and small in file size. Resizing changes the pixel width and height, and the result is re-encoded as WebP — which typically produces a file 25–35% smaller than the equivalent JPG at the same visual quality, with transparency support like PNG.
This WebP resizer runs entirely in your browser. Drop in a WebP file, enter a new width or height in pixels or a percentage, and download the resized version — no uploads, no sign-up, and no watermark.
How to use it
1. Drop your WebP image onto the drop zone or click to browse.
2. Enter a target width or height in pixels, or resize by a percentage.
3. Keep aspect ratio locked so the image scales proportionally instead of stretching.
4. Download the resized WebP image. Everything is processed on your device.
Choosing the right dimensions
Set the target width or height in pixels, or scale by percentage, keeping aspect ratio locked to avoid distortion. WebP downscales cleanly and is an excellent choice for web images where you want the smallest possible file at a given size. As with any format, enlarging past the original resolution cannot add real detail.
Common web targets are 1920px wide for large hero images, 1080px for social media posts, and 600–800px for images placed inside articles or email. When in doubt, size to the widest space the image will fill and let the layout scale it down.
Common mistakes to avoid
A few habits quietly ruin resized images:
- Enlarging a small image and expecting it to look sharp — upscaling cannot add detail, so it always looks soft. - Unlocking aspect ratio and typing mismatched width and height, which stretches or squashes the picture. - Resizing repeatedly from already-resized copies instead of going back to the largest original each time. - Confusing dimensions with file size — if you need a specific number of kilobytes, resize first, then compress.
Frequently asked questions
Is a resized WebP smaller than a resized JPG?
Usually yes. At the same pixel dimensions and visual quality, WebP is around 25–35% smaller than JPG and also supports transparency. Resizing down to your display size and saving as WebP is one of the most efficient combinations for the web.
Do all browsers show resized WebP images?
Every current version of Chrome, Firefox, Safari, and Edge displays WebP at any size. Only very old software or some legacy email clients may struggle, in which case a resized JPG or PNG is the more compatible choice.
Does resizing change the aspect ratio?
Only if you want it to. With aspect ratio locked, changing the width updates the height automatically so the image scales proportionally and never looks stretched. Unlock it only when you deliberately need to force an image into different proportions.
Are my images uploaded to a server?
No. All resizing happens locally in your browser using the canvas engine — your WebP images never leave your device, so it is safe to resize private or work images.
Is this tool free?
Yes — resizing WebP images here is completely free, with no watermark, no account, and no limit on how many you process.