BeWelcome

BeWelcome (often abbreviated as BW) is a hospitality exchange service that is run by a non-profit organization. The website was founded in February 2007. As of September 2015, the organisation has more than 80,000 members in more than 150 countries all around the world, who offer free accommodation and help during travel. Joining is free and the software behind the site, the BW-rox platform, is free and open-source software.