Graphl may be thought of as a visual wiki, a place where everybody can contribute to a shared repository of knowledge. Graphl builds upon RDF (the Resource Description Format), a standard for expressing the relationships of resources. While RDF specifies how to express these relationships in terms of concepts and grammar rules, Graphl focusses on visualizing these (possibly complex) networks of relationships, and allows the visual editing of such networks. While RDF was created mainly as a standard to support the machine-processability of relationship data, Graphl allows human users to interact with this kind of data in an intuitive way, by providing sophisticated rendering methods that allow users to explore even complex graphs and networks without visual overload. View and edit existing Graphl graphs View a graph existing on the net. Mind42: Free online mind mapping software. Welkin. What is this?