Topics / #graph-database

Graph-database projects on GitHub

Databases storing data as nodes and edges for graph queries.

As of , the most-starred Graph-database projects on GitHub are GitNexus (47.9K stars), LightRAG (40.2K stars) and surrealdb (33.2K stars). GitHub.Locker tracks 22 Graph-database repositories with 353K stars combined. The fastest-growing on October 16 was MemoryBear, with +121 stars in a day.

22Projects
353KStars in total
+450Stars in a day
Browse in the catalog →github.com/topics/graph-database ↗

Hot right now

Most stars gained in a day · Oct 16

+121

MemoryBear

SuanmoSuanyangTechnology/MemoryBear · ★ 7.8K

MemoryBear is an AI memory system that gives AI agents human-like memory: instead of just storing knowledge statically, it perceives, extracts, associates and forgets information over time.

+99

FalkorDB

FalkorDB/FalkorDB · ★ 10.3K

FalkorDB is an ultra-fast graph database built on sparse matrix math (GraphBLAS) instead of traditional traversal, designed to power Knowledge Graphs for LLM applications like GraphRAG, agent memory, and fraud detection.

+51

cognee

topoteretes/cognee · ★ 32.4K

Cognee is an open-source AI memory platform that gives AI agents persistent long-term memory across sessions, turning text, code, and conversations into a queryable knowledge graph.

+29

helix-foundry

HelixDB/helix-foundry · ★ 1.5K

Helix Foundry is a local-first data workspace that connects your company's tools (databases, Stripe, WorkOS, PostHog, files, APIs) into one suggested ontology stored in HelixDB, letting you explore and ask questions about your data.

The all-time top

22 projects · by stars

  1. #1 · abhigyanpatwari/GitNexus

    GitNexus

    It indexes any codebase into a knowledge graph — dependencies, call chains, clusters, execution flows — and serves it to AI coding agents via MCP tools so they stop making blind edits.

    47.9K
  2. #2 · HKUDS/LightRAG

    LightRAG

    LightRAG is an open-source, graph-based RAG framework (EMNLP 2025) by HKUDS. It indexes your documents into a knowledge graph plus vector embeddings so you can query them — a lighter, faster alternative to Microsoft GraphRAG.

    40.2K
  3. #3 · surrealdb/surrealdb

    surrealdb

    A multi-model database written in Rust: one engine for document, graph, relational, time-series, geospatial and key-value data, with full-text, vector and hybrid search and realtime capabilities.

    33.2K
  1. 4

    cognee

    32.4Ktopoteretes/cognee · Python

    Cognee is an open-source AI memory platform that gives AI agents persistent long-term memory across sessions, turning text, code, and conversations into a queryable knowledge graph.

  2. 5

    dgraph

    21.8Kdgraph-io/dgraph · Go

    Dgraph is an open-source, horizontally scalable distributed graph database with a GraphQL interface, built for real-time queries over terabytes of data. It provides ACID transactions, consistent replication, and linearizable reads.

  3. 6

    gun

    19.1Kamark/gun · JavaScript

    GUN is an open source cybersecurity protocol for syncing decentralized graph data — a peer-to-peer database that keeps app data in sync across browsers and devices, with no master server and no single source of truth.

  4. 7

    neo4j

    17.3Kneo4j/neo4j · Java

    Neo4j is the world's leading graph database: a high-performance store where data is modeled as a flexible network of nodes and relationships instead of static tables, with a friendly query language and ACID transactions.

  5. 8

    cayley

    15.1Kcayleygraph/cayley · Go

    Cayley is an open-source graph database for Linked Data, inspired by the graph database behind Google's Knowledge Graph (formerly Freebase).

  6. 9

    arangodb

    14.3Karangodb/arangodb · C++

    ArangoDB is a native multi-model database that stores documents, graphs, and key-value data together, queryable with a single SQL-like language called AQL.

  7. 10

    gel

    14.2Kgeldata/gel · Python

    Gel is a database that builds on Postgres, adding a modern object-based data model, a graph query language called EdgeQL, built-in Auth and AI tooling, and a managed cloud service.

  8. 11

    semantica

    14.1Ksemantica-agi/semantica · Python

    Semantica is an open-source, graph-native infrastructure layer that ingests enterprise data and builds a structured Context Graph and knowledge graph with deterministic reasoning, ontology governance, and full decision provenance, so AI systems can be explained and audited instead of treated as black boxes.

  9. 12

    hydradb

    13.1Khydra-db/hydradb · Rust

    HydraDB is an object-store-native distributed graph database written in Rust: the graph lives in S3-compatible storage, queried over OpenCypher with Neo4j-compatible Bolt connectivity and an HTTPS JSON/NDJSON API.

  10. 13

    nebula

    12.4Kvesoft-inc/nebula · C++

    NebulaGraph is an open-source distributed graph database built to handle large volumes of highly connected data with millisecond latency and quick horizontal scaling.

  11. 14

    MemOS

    11.9KMemTensor/MemOS · TypeScript

    MemOS is a Memory Operating System for LLMs and AI agents that unifies storing, retrieving, and managing long-term memory, so agents can have context-aware, personalized interactions instead of starting from scratch each session.

  12. 15

    BloodHound-Legacy

    10.6KSpecterOps/BloodHound-Legacy · PowerShell

    BloodHound Legacy is a security tool that uses graph theory to map hidden relationships and attack paths inside an Active Directory environment, helping find the shortest route to Domain Admin — hence its tagline 'Six Degrees of Domain Admin'.

  13. 16

    FalkorDB

    10.3KFalkorDB/FalkorDB · Rust

    FalkorDB is an ultra-fast graph database built on sparse matrix math (GraphBLAS) instead of traditional traversal, designed to power Knowledge Graphs for LLM applications like GraphRAG, agent memory, and fraud detection.

  14. 17

    flowsint

    9.8Kreconurge/flowsint · TypeScript

    Flowsint is an open-source, graph-based OSINT investigation tool that lets analysts explore relationships between people, domains, IPs, organizations and more through a visual graph interface with automated enrichers.

  15. 18

    MemoryBear

    7.8KSuanmoSuanyangTechnology/MemoryBear · Python

    MemoryBear is an AI memory system that gives AI agents human-like memory: instead of just storing knowledge statically, it perceives, extracts, associates and forgets information over time.

  16. 19

    m_flow

    4.5KFlowElement-xinliuyuansu/m_flow · Python

    M-flow is a bio-inspired cognitive memory engine that acts as a new paradigm for Graph RAG: instead of just retrieving similar text chunks, it builds a graph of memories and scores answers by the strongest chain of evidence connecting the query to the content, the way human recall works.

  17. 20

    helix-foundry

    1.5KHelixDB/helix-foundry · TypeScript

    Helix Foundry is a local-first data workspace that connects your company's tools (databases, Stripe, WorkOS, PostHog, files, APIs) into one suggested ontology stored in HelixDB, letting you explore and ask questions about your data.

  18. 21

    omnigraph

    1.3KModernRelay/omnigraph · Rust

    Omnigraph is a lakehouse-native graph database that acts as the operational state and coordination layer for fleets of AI agents, combining graph traversal, vector search, and full-text search with Git-style branching so many agents can enrich a shared knowledge graph safely.

  19. 22

    zilan

    200lxcshine/zilan · Go

    Zilan is an LLM-powered knowledge management and Q&A platform that unifies RAG quick Q&A, ReAct agent reasoning, and auto-generated Wiki knowledge distillation into one minimalist knowledge hub.

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