From IFWiki

A sandbox is a type of page on a wiki where one might experiment with wiki formatting. The main sandbox of IFWiki is just Sandbox.

If you want your own sandbox page to play around with, you should create a page titled User:USERID/Sandbox, replacing USERID with your actual userid.

Pages in category "Sandboxes"

The following 5 pages are in this category, out of 5 total.