You can get WordPress from WordPress.org which provides alongside the essential software, access to information, tutorials and access to the WordPress community.
WordPress gives users full administrative rights over the look and management of the site because it can be installed anywhere and modified to taste.
WordPress.org which is the source for WordPress is often mistaken for WordPress.com, which is only a third-party hosting solution that let’s users freely and easily set up a site as a subdomain of WordPress.com itself. WordPress.com’s basic features are free to use, but it offers a premium version that provides more options coupled with a unique domain name.
Unlike WordPress itself which can be installed anywhere and modified to taste, there are limitations to WordPress.com’s users choice of themes and access to the site’s PHP code or the many plugins available with WordPress itself.