For a software package to be listed on CLiki, its license must usually be free according to the Debian Free Software Guidelines (or DFSG). CLiki pages about licensing (most of which describe specific licenses) are
- AGPL - The GNU Affero General Public License (AGPL) is a strong copyleft license in the vein of the GPL, but focusing on server based applications
- BSD license - From the Debian DFSG site:
- DFSG - The DFSG, or
- GPL - The GNU General Public License is the "copyleft" license used by most of the applications developed by the Free Software Foundation (FSF)
- LGPL - LGPL - GNU Library General Public License, also known as the Lesser General Public License
- LLGPL - The "Lisp Lesser General Public Licence": this is a license like the LGPL but with a prequel which defines the effect in terms more typically used in Lisp programs
- MIT-LICENSE - The MIT License is a DFSG-compliant License
- non-free - If we cannot be free, at least we can be cheap - FZ
There are also substantial lists of licenses elsewhere:
- A list of licenses from the GNU project and whether the said licenses are GPL-compatible or not
- A list of OSI-compatible licenses from the Open Source Initiative (OSI)