Cayley
Cayley is an open source graph database inspired by Google’s Knowledge Graph infrastructure, written in Go. It supports multiple graph query languages including Gizmo (JavaScript-based), GraphQL, and MQL, and can use multiple storage backends. Cayley is a good choice for developers who want a flexible, embeddable graph database for research and experimentation.
🔗 GitHub: https://github.com/cayleygraph/cayley