free software
Free Software is software that can be licensed and freely used through the GNU General Public License.
The degrees of freedom associated with the use refer to the application for which the software is used, to the fact that one receives the source code and can use it to improve the program and adapt the functionality to one's needs, and last but not least, that one can pass the program on to third parties. Free software may be used commercially and implemented in appropriate programs and.
Free software exists in many variants. The better known are shareware, freeware, crippleware, demoware, public domain software, expireware and liteware.