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Convert JPG to WebP

WebP delivers the same visual quality as JPEG in files 25–35% smaller — a direct win for page speed and Core Web Vitals. Drop your JPG photos below to convert them to WebP instantly, entirely in your browser.

100% private — no upload
Unlimited
Free
Compression options
Web
Email
Social media
Max quality
Quality80%
Max Width/Height (px)
Output format
Filename suffixphoto-min.jpg

How much smaller WebP actually is

For photographic content, lossy WebP typically produces files 25–35% smaller than JPEG at visually equivalent quality. The gain comes from more modern techniques: WebP predicts each block from its already-decoded neighbours before encoding only the difference, an approach borrowed from video compression that JPEG's 1992 design does not use.

On a page carrying a megabyte of JPEGs, that is roughly 300KB saved for no perceptible change — meaningful on mobile connections and directly reflected in Largest Contentful Paint. WebP also supports transparency, which JPEG never has, so it can replace both JPEG and PNG in a single format.

Support, and one caveat about re-encoding

Browser support is no longer a consideration: Chrome, Firefox, Edge, Safari and every current mobile browser have handled WebP for years. The remaining gaps are outside the browser — some desktop applications, print workflows and older upload forms still expect JPEG, which is worth checking before converting an archive.

The caveat is generation loss. Converting a JPEG to lossy WebP means a second lossy pass over an image that has already lost information, so keep the quality at 80% or above to avoid compounding artefacts. If you still have the original camera file, encoding to WebP directly from that gives a cleaner result than going through JPEG first.

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Frequently Asked Questions

At equivalent visual quality, lossy WebP is typically 25–35% smaller than JPEG. On an image-heavy page this often saves hundreds of kilobytes and measurably improves Largest Contentful Paint.

Yes — Chrome, Firefox, Safari, Edge and all modern mobile browsers have supported WebP for years. Fallbacks are only needed for very old browsers like Internet Explorer.

80% is the sweet spot for web use: visually identical to the source JPEG with maximum savings. Use 90% for photography portfolios where fine detail matters.

Yes, it's still worth it — WebP re-encodes the decoded pixels more efficiently, so you typically save 20–30% even from an optimized JPEG. Just avoid repeating lossy conversions multiple times.