The following outline is provided as an overview of and topical guide to free software and the free software movement:
Free software – software which can be run, studied, examined, modified, and redistributed freely (without any cost). This type of software, which was given its name in 1983, has also come to be known as "open-source software", "software libre", "FOSS", and "FLOSS". The term "Free" refers to it being unfettered, rather than being free of charge.
Free and open-source software packages (by type)
Main article: Open-source software development |
Main article: Free software movement |
Main article: Free software license |
Main article: History of free software |
Main article: List of free and open-source software organizations |