Selling free software

Selling Software under the BSD license is permissible and commercial use of the project is part of the intent of the license.

The Free Software Foundation encourages selling free software. Quote "Distributing free software is an opportunity to raise funds for development. Don't waste it!". For example the GNU GPL which is the Free Software Foundation's license states that "[the user] may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee."