Convert JPG to WebP
WebP delivers the same picture in fewer bytes than JPEG. If your images are going on a website, this conversion is one of the cheapest performance wins available.
Drop your image here
or
Choose ImageYou can also paste an image with Ctrl+V
Images are processed on your device and never uploaded.
• •
Runs on your device — nothing is uploaded.
Working…
0%
- Original
- Result
- Saved
- Quality
How to convert JPG to WebP
- Select your JPG files — up to 20 at once.
- Pick a quality level; 80 is an excellent default for WebP.
- Press Convert and download individually or as a ZIP.
How much do you actually save?
Measured across typical content, WebP at equivalent perceived quality produces files 25–35% smaller than JPEG. The gain is largest on images with smooth gradients and flat regions, and smallest on very noisy photographs.
| Image | JPEG q80 | WebP q80 | Saving |
|---|---|---|---|
| Landscape photo | 420 KB | 290 KB | 31% |
| Portrait | 310 KB | 198 KB | 36% |
| Product on white | 140 KB | 82 KB | 41% |
Browser support in practice
WebP is supported by every current browser — Chrome, Edge, Firefox, Safari (since version 14, released 2020), and all current mobile browsers. For a public website in 2026 you can serve WebP directly.
If you must support genuinely ancient clients, use a <picture>
element with a JPEG fallback:
<picture> <source srcset="photo.webp" type="image/webp"> <img src="photo.jpg" alt="…"> </picture>
WebP also keeps transparency
Unlike JPEG, WebP has an alpha channel. That makes it the only widely supported format that does lossy compression and transparency — which is why it is the best answer for a transparent photographic PNG that is too large.
Frequently asked questions
Are my images uploaded to your server?
No. The image is decoded, processed and re-encoded by your own browser using the Canvas and Web Worker APIs. There is no upload endpoint for this tool — open your browser's network panel while you use it and you will see no request carrying image data.
Is WebP good for SEO?
Indirectly, yes. Smaller images improve Largest Contentful Paint, which is a ranking signal. The format itself is not a ranking factor; the speed it buys you is.
Should I convert my whole image library?
For web delivery, yes. Keep the original JPEGs as masters — WebP is a delivery format, and you do not want to re-encode from an already lossy WebP later.
What happens to my file when I close the tab?
It is gone. The image only ever exists in your browser's memory as an object URL; closing or refreshing the page discards it. Nothing is written to our servers, and nothing is stored on your device unless you download the result.