GNU Aspell, usually calle just Aspell, is a free software spell checker designed to replace Ispell. It is the standard spelling checker software for the GNU software system. It also compiles for other Unix-like operating systems and Microsoft Windows. The main program is licensed under the GNU Lesser General Public License (GNU LGPL), the documentation under GNU Free Documentation Licence (GNU FDL). Dictionaries for it are available for about 70 languages. The main maintainer is Kevin Atkinson.