Dgraph

Dgraph is a horizontally scalable, distributed graph database for real-time applications over terabytes of structured data. It is sharded across a cluster and provides ACID transactions, consistent replication, and linearizable reads, targeting workloads where data does not fit neatly into relational tables and query performance matters at scale.

Queries use a GraphQL-inspired syntax and return JSON or Protocol Buffers over gRPC and HTTP. Written in Go, Dgraph tightly controls how data is laid out on disk to cut disk seeks and network calls, and it handles distributed joins, traversals, and graph operations natively.

It runs on Linux amd64 and arm64, with Docker the recommended path for testing and deployment, including Docker Compose and Kubernetes. Official client libraries cover several languages. Dgraph is released under the Apache License 2.0.