You can also host your website on WordPress.com, but that's different from the kind of hosting mentioned above. WordPress.com uses the same code from WordPress.org, but it hides the server code and handles the hosting for you. In that sense, it resembles entries in our online site builder roundup. It's a simpler but less flexible and customizable way to approach WordPress hosting. It's definitely easier, but if you want to tinker and adjust and optimize every aspect of your site, it might not be for you.
This way, you really never have “your own” domain. The name of your free website builder provider is going to be permanently put in the website’s URL. Surely, some personalization is still possible – as you get to choose the name of the project but that’s really where it ends. This little issue actually makes perfect sense. After all, it would cost additional money for your provider to register a full custom domain name just for you. So if you want your page to spell “yourwebsite.com”, a free builder won’t suffice.