JPG to WebP
Convert JPEG to WebP.
This runs in your browser. Nothing is uploaded.
About JPG to WebP
Re-encodes JPEG photos as WebP in your browser, usually landing 25 to 35 percent smaller at the same visual quality.
WebP's lossy mode compresses more efficiently than JPEG at the same perceived quality, which is why nearly every site that cares about load time now serves it. For a page full of photographs, switching format alone can shave a meaningful chunk off the total page weight without touching the dimensions.
Because both formats are lossy, you are re-compressing an already-compressed image. In practice this is fine at sensible quality settings, but it is a reason not to convert back and forth repeatedly. Convert once, from the best source you have, and keep that original somewhere.
If you want to go further, AVIF compresses better still. It is slower to encode and slightly less universally supported, which is the trade.
How to use JPG to WebP
- 1Drop your JPEG onto the panel or click to browse.
- 2Choose a quality value — 0.8 is a reliable default for photos.
- 3Click Convert & download to save the WebP.
What it won't do
- Re-compresses an already lossy file, so avoid repeated round trips.
- EXIF metadata from the JPEG is not carried into the WebP.
Common questions
How much smaller will the WebP be?
Typically 25 to 35 percent smaller than an equivalent-quality JPEG, though it varies a lot with the image. Photos with large smooth areas such as sky or skin see the biggest gains. Busy, noisy images see less.
Does converting JPEG to WebP degrade the image?
Slightly, because you are applying lossy compression a second time. At quality 0.8 or higher this is generally invisible at normal viewing sizes. Converting the same file repeatedly between lossy formats will eventually show.
Should I use WebP or AVIF?
AVIF files are usually smaller again, often by another 20 percent, but take longer to encode and are not supported by quite as much older software. WebP is the safer default; AVIF is worth it when image weight really matters.
Related tools
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation