Force-directed graph drawing
software that implements a multilevel force-directed layout algorithm (among many others) capable of handling very large graphs.
LearnDiscovery, mobile software for iOS that visualizes the mindmap of English Wikipedia, computed as a weighted graph. It includes force-directed layouts as one of the built-in methods for displaying and accessing a connected-graph of topics.
Open source graph visualization
9th February, 2018
Neo4j graph database
OrientDB graph database