Memgraph Database

Memgraph is an in-memory graph database that stores data as nodes and edges in a property graph model.Memgraph is an in-memory graph database that stores data as nodes and edges in a property graph model. It is written in C++ and queried using Cypher. Because the working dataset lives in RAM, it delivers sub-millisecond latency on graph traversal queries. Data is persisted to disk using write-ahead logging and snapshots. It ingests data directly from Kafka, Pulsar, and Redpanda streams without a separate ETL step. It ships with MAGE — Memgraph Advanced Graph Extensions — a library of graph algorithms covering pathfinding, centrality, community detection, link prediction, and PageRank, callable from within Cypher queries. Custom procedures can be added in Python or C/C++. Vector embeddings can be stored on nodes, enabling queries that combine graph traversal with semantic similarity search. The database is ACID-compliant, supports replication with automatic failover, and offers role-based access control. A bundled visual tool, Memgraph Lab, provides query execution, graph visualisation, and schema design. Client drivers cover Python, Go, Rust, Java, Node.js, and others. The core is open source under Apache 2.0. An Enterprise tier adds multi-tenancy, per-user resource limits, and SLA-backed support. It runs on Linux, Docker, or as a managed cloud service.