LibreOffice is free and open source software, which means that it’s much more than zero-cost. Anyone can study how it works, modify it, and share those modifications with other users. (So the “free” is more about freedom than price.) There are many other well-known free software projects, such as the GNU/Linux operating system, Firefox web browser, and Thunderbird email client. Free software helps companies, organisations and governments to reduce costs, improve reliability and free themselves from dependence on a single vendor.