Open source software, by definition, means that the source code is freely available, the source code may be used, copied, extended, and redistributed with or without modifications, and may be offered either with or without a fee. Where a fee is charged it is most commonly charged for warranties, support, or for accepting indemnity or liability obligations to your customers. Where a fee is charged you cannot charge for the original source code.

Community content is available under CC-BY-SA unless otherwise noted.