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HyperGraphDB is a general purpose, open-source data storage mechanism based on a powerful knowledge management formalism known as directed hypergraphs. While a persistent memory model designed mostly for knowledge management, AI and semantic web projects, it can also be used as an embedded object-oriented database for Java projects of all sizes. Or a graph database. Or a (non-SQL) relational database.

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# What is HyperGraphDB used for?
](/discussions/what-is-hypergraphdb-used-for)
What is HyperGraphDB used for?

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Graph Databases

](https://www.g2.com/tags/graph-databases)[

Object-Oriented Databases

](https://www.g2.com/tags/object-oriented-databases)[

Relational Databases

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