Confluence is a web-based corporate wiki written in Java and mainly used in corporate environments. It is developed and marketed by Atlassian. Confluence is sold as either on-premises software or as a hosted solution. Its license is proprietary, but a zero-cost license program is available for non-profit organizations and open source projects.
Confluence combines powerful online authoring capabilities, deep Office integration and an extensive plugin catalog to help people work better together and share information effortlessly. It is used for intranets, knowledge management and documentation by over 8,100 organisations in 94 countries around the globe - across Fortune 1000, government, education, finance and technology sectors.