Image to WEBP Converter
Convert JPG or PNG images to next-gen WEBP for faster websites.
Lower quality gives a smaller file.
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This converter turns JPG, PNG, GIF, HEIC and other images into WEBP, the modern web image format that usually delivers the same visual quality in a noticeably smaller file. It is aimed at anyone building or maintaining a website who wants pages to load faster without visibly worse pictures.
WEBP in brief
Google introduced WEBP in 2010. A single format covers lossy compression for photos, lossless compression for graphics, transparency and animation. Lossy WEBP compresses a picture the way the VP8 video codec compresses a key frame, predicting each block from its neighbours, while lossless WEBP is a separate method that reproduces every pixel exactly. Every current major browser displays it, including Chrome, Edge, Firefox and Safari (since version 14), and most content management systems accept WEBP uploads.
What happens to each kind of input
| You upload | You get |
|---|---|
| JPG photo | Lossy WEBP, typically smaller at similar quality |
| PNG with transparency | WEBP that keeps the transparent areas |
| Animated GIF | A still WEBP of the first frame only |
| iPhone HEIC | Decoded in the browser, then saved as WEBP |
| SVG | A raster WEBP at the SVG's own pixel size |
Converting and choosing quality
- Drop your image onto the upload area.
- Set the Quality slider. It starts at 90%; for most website photos 75–85% saves more space with no difference anyone will notice.
- Click Process image and compare the Original and Result sizes shown above the previews.
- Click Download result to save the
.webpfile.
The encoding is done by your browser's built-in WEBP encoder, which Chrome, Edge and Firefox all include. Under the HTML canvas standard, a browser that can't encode WEBP silently falls back to PNG, so if the result is unexpectedly large, repeat the conversion in one of those browsers.
Serving WEBP with a fallback
Almost every visitor's browser now reads WEBP, but if you need to support very old browsers, the <picture> element lets each browser pick the first format it understands:
<picture>
<source srcset="photo.webp" type="image/webp">
<img src="photo.jpg" alt="Describe the photo" width="1200" height="800">
</picture>Setting width and height on the image lets the browser reserve space before the file arrives, which stops the layout from jumping as the page loads.
Practical tips
- Resize before converting. A 4000-pixel photo in a 1200-pixel slot wastes more bytes than any format change saves; the image resizer handles that first.
- Keep your originals. WEBP is a delivery format. Hold on to the JPG, PNG or camera file as your master copy for future edits.
- Know where WEBP isn't welcome. Some older desktop software and certain upload forms still reject it; for those, convert back with WEBP to JPG.
Images are converted on your device by the browser and are not uploaded anywhere.