XWiki unknown could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This free program was originally designed by XWiki. The most popular version among the program users is 1.1.
From the developer:
The XWiki project offers both a generic platform for developing collaborative applications using the wiki paradigm and products developed on top of it. All XWiki software is developed in Java and under the LGPL open source license.