Neo4j is a Graph Database. It uses Graph Data Model to represent the data, unlike other databases which use tables, documents, etc. Graph Data Model or Graph Data Structure is composed of Nodes and Relationships that connect nodes.
A query workbench and a visualization interface.
To install Neo4j and run Neo4j Browser - you can head to https://neo4j.com/download/ and download a community or an enterprise edition based on your requirements. Based on your OS the installation steps...