JPG to WebP Converter
Turn any JPG or JPEG photo into a modern WebP file that is typically 25 to 35 percent smaller at the same visual quality. Everything runs in your browser, so there is no upload needed.
Drop your JPG files
…or paste with Ctrl+V, or click to browse. Conversion starts instantly — no button to press.
100% browser-based. Your files never leave your device — we couldn't see them if we tried.
How to convert JPG to WebP (10 seconds)
Drop your JPG
Drag and drop your JPG or JPEG file onto the converter. Up to 50MB.
Instant preview
See your image immediately. No upload to any server.
Convert
Click Convert to WebP. The conversion happens entirely in your browser using the Canvas API.
Download WebP
Download your smaller WebP file. Great for faster web pages and lighter storage.
Why convert JPG to WebP
WebP was built for the web, and its main draw is size. At the same visual quality a WebP photo is usually about 25 to 35 percent smaller than the matching JPG. That saving adds up fast on a page full of images, cutting the amount of data your visitors have to download. In 2026 browser support is no longer a concern: Chrome, Edge, Firefox, Safari, and every modern mobile browser show WebP natively, so you can use it as a safe default rather than a risky experiment.
Smaller images do more than save storage. They load faster, which improves Core Web Vitals scores such as Largest Contentful Paint and gives visitors a snappier experience. When you convert, keep the quality slider somewhere around 80 to 85 for the best balance: high enough that the image looks identical to the original, low enough to capture most of the file-size win. If you ever need the source back in a more universal format, you can convert WebP to JPG just as easily.
Other converters you might need
Measured: WebP against JPG at the same quality
Comparing formats at the same quality setting number is misleading, because WebP 80 and JPEG 80 do not mean the same thing. So we compared them at the same measured quality instead. We measured this on twelve of the illustrations used on this site.
Each image was saved as a JPEG at quality 85. Then we searched for the smallest WebP, and the smallest AVIF, whose measured fidelity to the original matched or beat that JPEG.
WebP delivered the same measured quality in about two thirds of the bytes. AVIF went further still, at half the size, which is why it is worth knowing about. Our guide to AVIF covers when that extra step is worth it.
Convert from the original when you can
Converting a JPEG to WebP starts from pixels that have already been compressed once. The WebP encoder then spends some of its bytes faithfully preserving the JPEG's artifacts, which is wasted effort.
If you still have the original, such as a PNG export or the file from your camera, converting that directly to WebP gives a cleaner result at the same size. Converting JPEGs you already have is still worthwhile, it just is not the best possible case.
Serving WebP on a website
Every current major browser displays WebP, so for most sites the simplest approach is to use WebP files directly. Sites that must support very old browsers can offer WebP with a JPEG fallback using the picture element, and the browser picks the first format it understands.