JPG to WebP
Convert photos to WebP for pages that load faster.
Drop images here
Or choose files, or paste a screenshot. They are converted on your device and never uploaded.
Converting on your device…
That didn't work.
Your images never leave your device.
Keyboard shortcuts
- / or ⌘K
- Search every tool
- ⌘↵
- Run this tool, from anywhere on the page
- ⌘S
- Download the result
- ?
- Open and close this list
About the Pathine JPG to WebP
WebP stores the same photograph in roughly 25–35% less space than JPG at matching visual quality. On a page carrying a dozen images that is the difference between loading quickly and not, and images are almost always the heaviest thing on a page.
Support is no longer a reason to hesitate: every current browser reads WebP, and has for years. The remaining caveat is outside the browser — email clients, older desktop software and some upload forms still expect JPG, so WebP is a format for the web rather than a format for sending people files.
The conversion re-encodes the picture, so run it on the best original you have rather than on a JPG that has already been through several saves.
When you'd reach for it
Making a website faster
Converting a page's photographs to WebP typically removes a third of its total weight, which shows up directly in Largest Contentful Paint and in how fast the page feels on a phone.
Staying under a hosting or CDN limit
Image-heavy sites hit storage and bandwidth ceilings quickly. A third off every photograph buys real headroom without touching visible quality.
Improving Core Web Vitals
Page speed tools flag oversized images more often than anything else, and “serve images in next-gen formats” is usually the single largest item on the list.
Preparing a product catalogue
Dozens of product photographs at once, all converted with the same quality setting, so the whole set is consistent rather than tuned one at a time.
How to convert JPG to WebP
-
Add your JPG files
Drop them in or choose files. Up to 30 at a time, which covers most of a page's images in one pass.
-
Set the quality
80–85% is the usual sweet spot for WebP on the web and looks the same as a JPG at 90%. Raise it for images with text or hard edges.
-
Compare the sizes
The before and after are shown together with the percentage saved, so you can judge the setting rather than guess at it.
-
Download
One file downloads directly; a batch arrives as a zip.
Common questions
Is WebP supported everywhere?
In browsers, yes — Chrome, Firefox, Safari and Edge have all supported it for years. Outside the browser it is patchier: some email clients, older desktop software and upload forms still expect JPG or PNG.
How much smaller will my files be?
Typically 25–35% for photographs at equivalent quality, and often more for images with flat areas. The tool shows the exact figure for your files rather than asking you to trust an average.
Does converting lose quality?
The image is re-encoded, so there is some loss — but WebP is efficient enough that a WebP at 80% generally looks as good as the JPG it came from while being substantially smaller. Avoid repeatedly converting an image back and forth.
Should I keep the original JPGs?
Yes. Keep the highest-quality originals somewhere and treat the WebP files as an output. If you later need a different size or format, you want to start from the original rather than from a converted copy.
Is WebP better than AVIF?
AVIF compresses better again, often another 20% smaller, but encoding is slower and support outside browsers is thinner. WebP is the safer default today; AVIF is worth it when you control the audience and the last few kilobytes matter.