Free and open first
Best Graph Databases in 2026
When your work depends on relationships between data, a graph database can provide a way to represent and query those connections. Compare Query languages and Graph algorithms, then consider ACID transactions, Deployment, and Included storage for technical and operational fit. Vector search is another listed capability to weigh. Free plan and Paid from offer pricing details to compare across the options. LadybugDB, ArcadeDB, and AllegroGraph are among the databases covered, alongside GraphDB and Memgraph. Use the published criteria to assess which capabilities align with the data and deployment requirements of your project.
- 39 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
- 2
Eclipse RDF4J
Free plan Open source APILinuxMac+3RDF4J brings RDF storage, querying and reasoning tools together in a Java framework, with several storage options and a broad format list.
- 3
NebulaGraph
Free plan Open source APILinuxMac+3NebulaGraph offers graph query, vector search and multiple deployment options, with a free open-source edition and a 14-day Cloud trial.
- 4
AllegroGraph
Free plan APILinuxMac+3AllegroGraph brings graph, vector, reasoning, and analytics capabilities into one platform. The free edition’s triple cap and Linux-native server deployment are important selection considerations.
- 5
Apache HugeGraph
Free plan APILinuxMac+2Apache HugeGraph brings graph storage, computation, AI tooling, and management utilities into one open-source system.
- 6
Cayley
Free plan APILinuxMac+2Choose Cayley if you need an open-source graph database with multiple query languages, linked data support and a choice of storage backends.
- 7
CognoDB
Free plan APISelf-hostedWebCognoDB combines Cypher and Bolt compatibility with managed operations and daily encrypted snapshots. It may not fit projects that require vector search or a self-hosted deployment.
- 8
FalkorDB
Free plan APILinuxSelf-hosted+1Consider FalkorDB if your team needs a graph database with OpenCypher, vector similarity and deployment options for interconnected data applications.
- 9
GraphDB
Free plan APILinuxMac+3GraphDB offers semantic graph storage and reasoning, with a free edition and an Enterprise option.
- 10
InfiniteGraph
Free plan APILinuxSelf-hosted+1Pick InfiniteGraph for graph analytics that must combine distributed ingestion with deep-link and relational queries.
- 11
LadybugDB
Free plan AndroidAPIiPhone+5LadybugDB combines a Cypher property graph model with analytical query processing and broad APIs and extensions.
- 12
Memgraph
Free plan APILinuxMac+3Choose Memgraph if you need a graph database with Cypher, streaming connectors, and graph algorithms, or want to start with its free Community Edition.
- 13
GUN
Free plan AndroidAPIiPhone+5GUN offers decentralized synchronization, broad data models, and many storage and transport choices at no listed cost.
- 14
JanusGraph
Free plan APILinuxSelf-hostedJanusGraph offers a free, open-source option for distributed graph storage and querying, with multiple integrations and transaction choices.
- 15
OrientDB
Free plan APILinuxMac+3OrientDB brings graph and document capabilities together, with query and data tools plus a broad client list.
- 16
Quine
Free plan APILinuxSelf-hosted+1Quine combines streaming graph processing with continuously evaluated queries and a broad set of documented inputs and outputs.
- 17
Sparksee
Free plan AndroidAPIiPhone+4Choose Sparksee if your application needs an embeddable graph database with built-in algorithms and local data storage.
- 18
TerminusDB
Free plan APILinuxSelf-hosted+1Choose TerminusDB if your work needs a schema-enforced document graph with Git-like version control, transactional commits, and multiple query interfaces.
- 19
TigerGraph
Free plan APILinuxSelf-hosted+1Choose TigerGraph when connected-data analytics, graph and vector search, or multiple deployment routes are central requirements.
- 20
TuGraph
Free plan APILinuxSelf-hosted+1TuGraph combines graph storage, queries, analytics, and visualization, with different deployment scales listed for its editions.
- 21
TuringDB
Free plan APILinuxSelf-hosted+1Choose TuringDB if you want a graph database with version history and flexible deployment, including a free self-hosted Community option.
- 22
HyperGraphDB
Free plan LinuxSelf-hostedWindowsHyperGraphDB is aimed at developers who want an embedded hypergraph model rather than a client/server database.
- 23
TypeDB
Free plan APILinuxMac+3TypeDB is built around schema validation and relations that can represent connections among entities, attributes, and other relations.
- 24
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ONgDB
Free plan LinuxMacWeb+1
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price