The Apache License (ASL) is a free software license written by the Apache Software Foundation (ASF). The Apache (/əˈpætʃi/) License requires preservation of the copyright notice and disclaimer. Like other free software licenses, the license allows the user of the software the freedom to use the software for any purpose, to distribute it, to modify it, and to distribute modified versions of the software, under the terms of the license, without concern for royalties.