First up, a quick disclaimer …

I do not care about your private information! (i.e. I do not want it)

You should be aware that the interactive demos in these pages do use the server to reformat the examples and any changes you might make to them.

However, …

• no data is ever stored (not even logfiles!)
• no cookies are used
• no IP address tracking is performed
• no user profiles of any kind are created

Even so, you should not post any private information here, but feel free to experiment with the excercises in these tutorials.