How to convert JPG to WebP
- Choose your JPG files, drop them on the page, or paste an image from your clipboard.
- Check that WebP is selected under “Convert to”. Adjust the quality if you want a smaller or larger file.
- The conversion starts straight away. It takes a second or two per image, on your own device.
- Click Download to save the WebP. With several images, download them all as one zip.
Why convert JPG to WebP?
WebP stores photos around 25–35% smaller than JPG at the same visual quality. For a site with many photos, such as a shop, a blog or a portfolio, that adds up to noticeably faster pages and better Core Web Vitals scores.
All current browsers support WebP. If you need to cover very old browsers too, serve the WebP with a JPG fallback in a <picture> element.
Frequently asked questions
How much smaller will my photos get?
Usually 25–35% at the same quality, and more if you lower the quality slider. The list shows the exact before and after size of every file.
Should I use WebP or AVIF?
AVIF is often smaller still, but it's slower to encode and a little less widely supported in editing software. WebP is the safe default; AVIF output is available on Pro.
Is this JPG to WebP converter free?
Yes. You can convert 3 images a day for free, up to 4 megapixels each, with no watermark. Pro removes the daily limit, keeps images up to 16 MP and converts up to 50 files at once with a zip download.
Are my images uploaded?
No. The converter runs entirely in your browser, on your own device. Your images are never sent to a server, so it's safe for personal and confidential photos.
Can I convert several images at once?
Yes, on Pro: add up to 50 images and download them one by one or all together as a zip. Free accounts convert one image at a time.
Which formats can I convert?
You can open HEIC/HEIF, JPG, PNG, WebP, AVIF, GIF and BMP files and save them as JPG, PNG or WebP. AVIF output is available on Pro. Safari can't save WebP, so the WebP option is off there.