The answer to this question largely depends on what you mean by “free.” WordPress.com is free to use, but there are some limitations, including the lack of some features and plugins. WordPress.
org, on the other hand, is open source software that costs nothing to use. There are no limitations on the number of blogs you can create or the plugins and themes you can use.
However, there are some downsides to using WordPress.com. For one, it can be difficult to find help if you need it. Secondly, it’s not as versatile as some other platforms when it comes to design and layout.
Additionally, if you want to make money with your blog, you’ll need to monetize it in some way.org is free, but there aren’t as many ways to do that as there are with WordPress.