To create a sitemap for your website, you can use 4n6 Sitemap Generator, which is an online service that is provided free of cost. To get started, open the software web page and feed in your URL in the respective field. Following this, decide on the format of the sitemap you require - standard, video, picture, or news. Once your settings are optimized as per your choice, just click on "Generate Sitemap.". The tool will crawl your site, collect pertinent information, and generate a complete sitemap in XML format. After the process is done, you can download the sitemap file and submit it to search engines such as Google in order to enhance your site's visibility and SEO.