How to use the Image to WebP Converter
- 1. Choose imagesPick or drop up to 100 JPG, PNG, GIF, BMP or SVG files.
- 2. Set quality and sizeChoose a quality (80 is a good default) and, if you like, a maximum width or height.
- 3. ConvertSee before-and-after sizes and download the WebP file, or a ZIP for several.
Why WebP
WebP is an image format from Google that every current browser can display. For photos it is usually noticeably smaller than JPEG at similar quality, and unlike JPEG it supports transparency, so it can also replace many PNGs. Smaller images make pages load faster, which helps visitors on mobile data and counts towards Google's page-experience signals. Everything runs in your browser; nothing you type or choose is uploaded.
The tool draws each image onto a canvas and asks your browser to encode it as WebP at the quality you choose. Resizing keeps the proportions and never enlarges an image. Transparency is kept unless you choose to fill it with white. Chrome, Edge and Firefox can create WebP files; Safari can display WebP but can't create it this way, so the tool tells you if your browser can't convert.
Worked example
Suppose you choose a 1600 × 1200 px PNG screenshot and set the maximum width to 800 px. The WebP comes out at 800 × 600 px, the same 4:3 shape, and the results table shows the original size, the WebP size and the percentage saved for that file. Choose ten photos and the tool converts them all and offers a single webp-images.zip.
Tips
- Quality 75–85 suits most photos; for logos and flat graphics, compare against the original PNG, which can sometimes be smaller.
- Resize images to the largest size they're shown on your site before converting.
- Keep your originals: converting is lossy and can't be undone.
Frequently asked questions
Will my images be uploaded?
No. Conversion happens in your browser and the files never leave your device.
What happens to animated GIFs?
They become a still WebP of the first frame.
Is the image to WebP converter free?
Yes. You can open the image to WebP converter and fill in every option without signing up. When you convert images for the first time, we ask once for your name and WhatsApp number; after that it, and every other Uncodemy tool, opens straight away.