WebP typically produces smaller files than JPG at the same visual quality, which is why it is the format of choice for fast websites. Drop your JPGs here to convert them to WebP on your device — pick a quality, compare the sizes, download. Nothing is uploaded.
80% gives a large size cut with no visible loss for most photos. Changing it re-converts all files.
Converted WebP files will appear here with a size comparison.
How it works
Each JPG is decoded and re-encoded as WebP through the Canvas API at the quality you set. WebP’s compression is more efficient than JPG’s, so at a matching quality the file is usually 25–35% smaller — meaningful savings across a page full of images, where it directly improves load time and Core Web Vitals.
This is a lossy-to-lossy conversion, so it re-compresses the image once. The JPG has already lost some detail; WebP won’t restore it, but at 80% quality the visible result is essentially identical while the file shrinks. Each file shows the before and after size so the saving is concrete.
Practical examples
Speeding up a website
A page loads a dozen JPG photos. Convert them to WebP at 80% and the combined weight often drops by a third, cutting load time with no visible quality loss on screen.
Shrinking a photo gallery
Export a batch of JPGs to WebP before uploading to a blog or shop that supports it. The running total shows how many kilobytes the whole set saved.
Keeping quality for hero images
For a large banner where sharpness matters, push quality to 90%. WebP still tends to beat the equivalent JPG on size while holding detail.
Frequently asked questions
Why convert JPG to WebP?
Smaller files at the same quality. WebP’s compression outperforms JPG, so pages load faster and use less bandwidth. It is the practical reason most modern websites serve WebP instead of JPG.
Do all browsers support WebP?
All current browsers do — Chrome, Firefox, Edge, Safari and mobile browsers. Only very old software may not. If you need maximum compatibility with legacy tools, keep JPG or convert the other way with the WebP to JPG tool.
How much smaller will the WebP be?
Commonly 25–35% smaller than the JPG at the same visual quality, though it varies with the image. The per-file size readout shows the exact result so you don’t have to guess.
Does converting improve quality?
No. The JPG already discarded detail, and WebP cannot bring it back. The goal here is a smaller file at the same apparent quality, not a sharper image.
What quality setting should I use?
80% is a strong default: a large size cut with no visible difference for most photos. Raise it to 90% for hero images or print-bound work; lower it only when size matters more than fine detail.
Can the WebP ever be larger than the JPG?
Rarely, and mainly at very high quality settings or for small, already-optimized JPGs. If the size readout shows a gain, lower the quality slightly or keep the original.
Are my images uploaded?
No. Everything runs in your browser with the Canvas API. You can work offline after the page loads — no image data leaves your device.
Can I convert many files at once?
Yes. Drop or select as many JPGs as you like; each converts independently with its own download, and changing the quality re-encodes the whole batch.
Is metadata carried over?
No. Re-encoding through the canvas drops embedded EXIF such as camera model and GPS — usually a welcome privacy effect when publishing images.
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