JPG vs WebP: what changes
WebP was designed to replace JPG on the web. At comparable visual quality, Google's published comparisons found WebP files 25 to 34 percent smaller, which means faster pages and less bandwidth for visitors.
The converter writes lossy WebP at 92% quality, so an already compressed JPG goes through a second round of lossy compression. The result is hard to tell apart for most photos, but if you still have the original camera file, convert from that for the best result.
How to convert JPG to WebP on any device
Uploading to a website
Convert, then add the WebP files to your site's media library. WordPress has accepted WebP since version 5.8, and many other site builders and image services do too.
Product and portfolio photos
Select the whole folder at once. The ZIP keeps every original file name and changes the extension to .webp, so you can upload the lot without renaming.
Checking the saving
Compare file sizes in your file manager after converting. Most photos shrink clearly, and if one does not, simply keep the original JPG for that picture.
Troubleshooting JPG to WebP
The WebP is not much smaller
A JPG that was already saved at a low quality has little left to remove. Heavily optimized JPGs may only shrink slightly.
An older program cannot open the WebP
Modern browsers all read WebP, but some older email clients, office suites and desktop viewers do not. Use the WebP to JPG converter to go back.
A very large picture fails to convert
WebP cannot be wider or taller than 16,383 pixels, while JPG allows much larger sizes. Resize extremely large images before converting.
Color profile and metadata
The WebP is built from decoded pixels, so camera EXIF data such as model, lens and location is not included, which is also good for privacy when you publish photos. The embedded color profile is not kept either, so colors are treated as sRGB.