How to convert JPG to WebP

1.
Add JPG files
Drop photos onto the box above, click to choose them, or paste an image from the clipboard (Ctrl+V).
2.
Set the quality
For websites, 75-85% is recommended. The result updates automatically after every change.
3.
Download WebP
Download single files or all of them at once as a ZIP archive.

Why convert JPG to WebP?

WebP is an image format created by Google in 2010, based on the VP8 video codec. According to Google, lossy WebP is 25-34% smaller than JPG at comparable quality. For a site full of photos, that means faster loading, a better LCP score in Core Web Vitals and less mobile data.

Photo 1920×1280 px	JPG (quality 85)	WebP (quality 85)
Landscape	≈ 620 KB	≈ 410 KB
Portrait	≈ 380 KB	≈ 250 KB
Product on white background	≈ 180 KB	≈ 95 KB

These are example values - the actual saving depends on the content of the photo.

Does WebP work in every browser?

Yes. All modern browsers support WebP: Chrome (since 2014), Edge, Firefox (since version 65, 2019), Opera and Safari 14 or newer (macOS Big Sur and iOS 14, 2020). That covers over 95% of internet users. If you must support very old devices, use a <picture> element with JPG as the fallback:

<picture>
  <source srcset="photo.webp" type="image/webp">
  <img src="photo.jpg" alt="Photo description">
</picture>

Which WebP quality should you choose?

85-90% - portfolio photos, product shots shown at large zoom.
75-85% - typical website and blog images (the best trade-off).
60-70% - thumbnails, backgrounds, galleries with many images.

Note that every lossy conversion lowers quality a little. Convert from the original JPG, not from a file that has already been compressed several times.

Common mistakes when switching to WebP

Quality set too high - WebP at 100% can be bigger than the source JPG at 80%. If the file did not get smaller, drop to 80-85%.
Oversized dimensions - a 6000 px wide photo stays heavy in any format. First resize it to the width it is displayed at (e.g. 1920 px), then convert.
Deleting the originals - keep your JPGs as source files and treat WebP as the published version.
Converting back to JPG - each extra lossy save adds artefacts.

The converter does not change the image dimensions - it saves the same resolution in a different format.

Privacy

Conversion runs entirely in your browser (Canvas API). Files are never sent to a server, so you can safely convert private photos, scans and company graphics. Saving to a new format also strips EXIF metadata, including GPS coordinates.

Frequently asked questions

Does converting JPG to WebP reduce quality?

Lossy WebP, like JPG, discards some information. At 80-90% quality the difference is practically invisible, and the file is still noticeably smaller than the original.

How much smaller will the WebP file be?

Usually 25-35% smaller than a JPG of similar quality. If you choose a lower quality than the original, the saving can exceed 50%.

Can I convert many photos at once?

Yes. Add as many JPG files as you like - they are all converted and you can download them in one click as a ZIP.

Is WebP good for email or printing?

For printing, and for people who open photos in older programs, stick with JPG. WebP is mainly a format for websites.

Why can I not save WebP on my iPhone?

Browser WebP encoding works in Safari 17 (iOS 17) and newer. On older systems, update iOS or use a computer with Chrome, Edge or Firefox.

Updated: October 10, 2026