JanusGraph

Linux · Self-hosted · API

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

JanusGraph is ranked #17 of 37 in graph databases on Freedom251. It runs on API, Linux, Self-hosted. There is a free plan.

JanusGraph plans and pricing

All plans

JanusGraph Free All functionality is free · no commercial license required · Apache 2.0 license janusgraph.org · 5 Oct 2026

Compared on graph databases

Free plan: Yes
Deployment: self_hosted
Query languages: Gremlin
ACID transactions: Yes
Graph algorithms: Yes

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The record

Product: JanusGraph is a distributed graph database for storing and querying graphs across a multi-machine cluster.
Scale: The site says it is optimized for graphs containing hundreds of billions of vertices and edges.
Transactions: It supports ACID or eventually consistent transactions and thousands of concurrent users executing graph traversals in real time.
Scalability: The site describes elastic, linear scalability, data distribution and replication, multi-datacenter high availability, and hot backups.
Analytics: JanusGraph supports global graph analytics through its Apache Spark integration.
Query interface: It integrates natively with Apache TinkerPop, including the Gremlin query language, Gremlin Server, and Gremlin Console.
Storage integrations: Listed storage backends include Apache Cassandra, Apache HBase, Google Cloud Bigtable, Oracle BerkeleyDB, and ScyllaDB.
Indexing: Optional full-text, geographic, and numeric range search is available through Elasticsearch, Apache Solr, or Apache Lucene.
Adapters: The site lists community-maintained storage adapters for Aerospike, DynamoDB, and FoundationDB.
License: JanusGraph is fully open source under the Apache 2.0 license, and the site says all functionality is free with no commercial license required.
Governance: JanusGraph is described as a community-driven project governed by the Linux Foundation since 2017.
Support: The project lists Discord, a users mailing list, Stack Overflow, and GitHub as community help channels.
Intended use: The project page describes JanusGraph as a graph database designed for large graphs distributed across multiple machines.
Founded: 2017
Price from: Free

Where it ranks on Freedom251

Best Graph Databases in 2026#17 of 37

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Sources

janusgraph.org· checked 5 Oct 2026