A JPG is lossy. As PNG, TIFF or BMP its pixels are kept exactly as they are now, in a bigger file (what its compression removed stays lost); as WebP it's compressed again at the Quality you choose; as GIF it's cut to 256 colours or fewer.
- JPG and JPEG are the same format: choosing JPEG re-encodes the image under the other extension.
- Choosing JPG itself re-encodes it — to resize it, shrink it at a lower Quality or strip its metadata.
- JPG files can be up to 256 MB and 268 megapixels.
- WebP is made by the browser's own encoder in Chrome, Edge and Firefox and by libwebp (WebAssembly) in Safari; PNG and JPG by the browser; GIF, TIFF and BMP by the tool itself — so every format can be made in every modern browser.
- Camera details, location and other metadata are removed, and so is any colour profile: colours are converted to sRGB. A photo's orientation is applied first, so it stays the right way up.
How to do it
- Choose your JPG files, or drop or paste them on the page — as many as you like.
- Each starts as a WebP; pick another format for every file with Convert to in Settings, or for one file on its row.
- Convert all, then download each image, or all of them in one .zip.