What this converter does not do
It has no settings. Every JPG is saved as WebP at quality 92, so some jobs need a different tool.
No WebP in Safari
Safari can't encode WebP, and neither can most browsers on iPhone and iPad, because they use Safari's engine. Use Chrome, Edge or Firefox.
No lossless option
Quality is fixed at 92. Image converter has a quality slider, and at 100 Chrome, Edge and Firefox save lossless WebP.
Not always smaller
Most JPGs shrink, but one already saved at a low quality can come out about the same size or a little larger. Check both sizes in the list before you delete anything.
Metadata is dropped
The WebP holds only the image. Metadata in the JPG, such as EXIF camera details, is not copied.
Size limits
WebP can't be wider or taller than 16,383 pixels, so a larger JPG can't be converted. Very big images can also fail on phones, where browsers limit canvas size.
Related image tools
Frequently asked questions
No. The WebP is saved at quality 92, which is lossy. Most images look the same, but small text and sharp coloured edges can soften a little. For lossless WebP, use Image converter with the quality set to 100.
A JPG that was already saved at a low quality is small to begin with, and converting it to WebP at quality 92 doesn't always beat that. Compare both sizes in the list before you replace the original.
Not properly. Safari can't encode WebP, and most browsers on iPhone and iPad use Safari's engine. You get JPG data in a file named .webp, which is no smaller. Use Chrome, Edge or Firefox on a computer or an Android phone.
No. Your browser reads and converts them inside this tab. When you click Download all (ZIP), the page downloads the JSZip library from cdnjs. The site's Google Analytics receives the number of files and their total size, never file names or image data.
The browser couldn't read it as an image or couldn't save the result. Usually the file is damaged, isn't really a JPG, or is too large. Files over 100 MB are not added to the list at all.
Your images stay on your device
Your browser decodes each JPG and encodes the WebP inside this tab. The images are not uploaded or stored. The JSZip library is downloaded only when you save a ZIP, and analytics records only how many files you converted and their total size.