wget is a free command-line utility used for downloading files from the internet. It supports various protocols, including HTTP, HTTPS, and FTP, making it versatile for retrieving content from different sources. Users can easily download single files or entire websites, and it can resume interrupted downloads, which is particularly useful for large files. This tool is commonly used in Linux and Unix environments, but it is also available for Windows. With its simple syntax, users can specify the URL of the file they want to download, along with options for customization, such as limiting download speed or setting user-agent strings.