FREE CONVERTER · ON YOUR DEVICE
Convert JPG to WebP
Add your JPG file below and press the button: Cocuyo converts it to WebP right in your browser, for free and with no watermark. WebP is already selected as the output. You want your photos to weigh less on your website or online shop without it showing.
- Free, no watermark
- Your files never leave your device
- WebP pre-selected
HOW TO DO IT
Three steps.
Add your JPG file
Drop it on the box or choose it. Up to 10 still JPG, PNG, WebP or AVIF images at once, up to 30 MB and 40 megapixels each, with single or ZIP download. AVIF requires a compatible browser.
Check that WebP is selected
WebP comes pre-selected. Adjust quality or size if needed. With JPG you can also choose the background for transparent areas.
Download the WebP
Press the button and download each file, or all of them in a ZIP when there are several.
FORMATS
JPG vs WebP: what changes
You want your photos to weigh less on your website or online shop without it showing. It is re-compressed at 92% quality: usually smaller, but some office apps or old forms cannot open WebP. To ask for an exact size in KB, use Compress image.
| Feature | JPG | WebP |
|---|---|---|
| What it is | Compressed photo (JPEG). | Modern image format for the web. |
| Compression | Lossy: very light; every re-save loses a little detail. | Lossy or lossless; according to Google, around 25–35% smaller than JPG at similar quality. |
| Transparency, animation or sound | No transparency or animation. | Keeps transparency (and animation; still images are converted here). |
| Compatibility | Universal: phones, websites, email and print. | All current browsers; some older software, office apps or forms cannot open it. |
| Best for | Photos to share, websites and email. | Fast websites and online shops. |
JPG to WebP: common questions
Does converting JPG to WebP lose quality?
It is re-compressed at 92% quality: usually smaller, but some office apps or old forms cannot open WebP. To ask for an exact size in KB, use Compress image.
How many files can I convert at once?
Up to 10 still JPG, PNG, WebP or AVIF images at once, up to 30 MB and 40 megapixels each, with single or ZIP download. AVIF requires a compatible browser.
Does it work on a phone?
Yes, in current mobile browsers (Chrome, Safari, Edge, Firefox). Large files take a little longer on a phone, and the tab should stay open until the download is ready.
Are my files uploaded to a server?
No. The conversion happens inside your browser: the file is read and processed on your device and is not sent to Cocuyo or to any third party. You can check it in your browser’s network tools: your file is not sent.
Is it really free?
Yes. You can try it before signing up; to download the result we ask for a free account, with no subscription. Your free account comes with 30 welcome uses; after that, each use costs 1 credit (top-ups from US$1), and they are unlimited with Basic or Pro. It never adds a watermark.
Learn how to…
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