WTFPL

The WTFPL (Do What the Fuck You Want to Public License) is a permissive copyright license (also a public copyright license) most commonly used as a permissive free software license. It is essentially no different from dedication (waiver/anti-copyright notice) to the public domain. The original Version 1.0 license, released March 2000, was written by Banlu Kemiyatorn who used it for Window Maker artwork.Sam Hocevar, a French programmer who was the Debian project leader from 17 April 2007 to 16 April 2008, wrote version 2.0. It allows for redistribution and modification of the software under any terms – licensees are encouraged to "do what the fuck [they] want to". The license was approved as a GPL-compatible free software license by the Free Software Foundation but its use is “not recommended.” The OSI rejected the license.

Terms

Version 1

Version 2

The text of the license:

Characteristics

The license is extremely permissive and allows every use. Unlike the GPL, it's not copyleft. Unlike some other licenses, it doesn't include warranty disclaimer.