WTFPL is described as 'The WTFPL is a very permissive license for software and other scientific or artistic works that offers a great degree of freedom. In fact, it is probably the best license out there'. There are three alternatives to WTFPL, not only websites but also apps for . The best alternative is Creative Commons, which is free. Other great sites and apps similar to WTFPL are GNU General Public License (Free) and Mozilla Public License (Free).
The GNU General Public License (GNU GPL or GPL) is the most widely used free software license, which guarantees end users (individuals, organizations, companies) the freedoms to use, study, share (copy), and modify the software.