Hypercube is a tool for visualizing DOT (graphviz), GML, GraphML, GXL and simple text-based graph representations as SVG and EPS images. It comes with a Qt-based GUI application and a Qt-independent commandline tool. It uses a simulated annealing algorithm to lay out the graph, which can be easily parameterized to achieve the desired look. The main development goals are portability and easy usage rather than high performance and complexity.