What is a "WebP" Image?
WebP is a modern image file format that supports both lossy and lossless compression and alpha transparency. It's a good replacement for PNG, which is lossless, but its quality is inferior to JPG, which is lossy.
More specifically, WebP is a great format for reducing file size. It was designed to make loading images faster on the web. It's a great format for automatically generated thumbnails, resizes images, previews, and the sort. However, it tends to have poorer quality than JPG when compressing photography. If you want to distribute high-quality images on the web that users are supposed to save, e.g. wallpapers, JPG is still better than WebP.
Due to WebP being a newer format, there may be some programs that don't support it, so you'll need to convert a WebP file to supported format such as PNG before opening it.
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