what are the software
“Free software” means software that respects users' freedom and community. Roughly, it means that the users have the freedom to run, copy, distribute, study, change and improve the software. Thus, “free software” is a matter of liberty, not price.
Free software is a matter of liberty, not price: users, individually or collectively, are free to do what they want with it – this includes the freedom to redistribute the software free of charge, or to sell it (or related services such as support or warranty) for profit.