PARAVER: A tool to visualize and analyze parallel code. PARAVER (PARAllel Visualization and Events Representation) is a tool to visualize and analyze a parallel events trace file. PARAVER can be used in two different ways: Creating its own trace file in accordance with the PARAVER trace format, or using a modified PVM library. PARAVER is based on a simple interface to manage several displaying windows. In fact, PARAVER can be seen like a tape recorder where the trace file is the tape. PARAVER provides many functionalities to see and analyze quantitatively the trace file. Moreover, the user can add his own analysis function to extend the functionality of the tool. This paper discusses the basic concept, design and use of PARAVER. We explain in detail each window. The different functionalities of PARAVER are also examined. Finally we present the future directions of our research.