Graph Database GitHub Repositories (2026) · Open Source Tools

Object-storage native graph database with branching and typed ontology

Connect your company's data, let an agent draft an ontology over it, and load it into HelixDB as one graph you can explore and ask questions of. Hosted at foundry.helix-db.com, or run it on your own machine.

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with small models for free

Not another ChatGPT wrapper. This is a local-first tool that turns your notes, web pages, PDFs and audio/video into a personal knowledge graph — running entirely on your own machine.

The ultimate RAG for your monorepo. Query, understand, and edit multi-language codebases with the power of AI and knowledge graphs

SPARQL graph database

HelixDB is an OLTP graph database with native vector and full-text search built in Rust on Object Storage.

the open-source Context/Knowledge Layer Database

React-based web application that enables users to visualize both property graph and RDF data and explore connections between data without having to write graph queries.

Apache TinkerPop - a graph computing framework

Infrahub is a graph-based data management platform with built-in version control, CI workflows, peer review, and API access. It’s purpose-built to power reliable infrastructure automation at scale.

Grafeo is a pure-Rust, high-performance graph database that can be embedded as a library or run as a standalone database, with optional in-memory or persistent storage. Grafeo supports both LPG and RDF and all major query languages.

Arches is a web platform for creating, managing, & visualizing geospatial data. Arches was inspired by the needs of the Cultural Heritage community, particularly the widespread need of organizations to build & manage cultural heritage inventories

A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)

Awesome Procedures On Cypher for Neo4j - codenamed "apoc"                     If you like it, please ★ above ⇧            

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.

An active model wrapper for the Neo4j Graph Database for Ruby.

Scalable graph analytics database powered by a multithreaded, vectorized temporal engine, written in Rust

YouTrackDB is a general-use object-oriented graph database with storage format native to handle graph relations. YouTrackDB supports Gremlin queries and ACID transactions. YTDB supports both embedded and client-server deployment models.

RushDB is a self-describing, graph-native database that helps AI agents reason over data with confidence: progressively introspect what's queryable—without guesswork.