memgraph / memgraph

High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++.

hydra-db / hydradb

Distributed graph database in Rust that stores its data durably on S3-compatible object storage and serves OpenCypher over Bolt and HTTP.

CurateLabs / graphforge

An embedded, openCypher-compatible graph workspace for Python & Node.js