JanusGraph

Name: JanusGraph
Brand: JanusGraph

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Distributed graph database for scale

Data & Databases Cloud & Infrastructure

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Tracked since2025

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The Bottom Line

Entry price

Free, no paid tier

Biggest pro

Open source graph DB

Biggest con

Complex setup

TL;DR - JanusGraph

JanusGraph is an open-source distributed graph database for massive datasets
It supports billions of vertices and edges with pluggable storage backends
Completely free and open-source

Pricing: Free forever

Best for: Individuals & startups

What is JanusGraph?

Editorial review

JanusGraph is an open-source distributed graph database. Scale graph data across multiple machines, query relationships at scale-graph storage for serious workloads. The distribution handles scale. Multiple storage backends are supported. The query language is Gremlin. Organizations with massive graph data requirements choose JanusGraph for scalable graph storage.

Available on: Web

LCLouis CorneloupUpdated May 26, 2026 · how we evaluateSourcejanusgraph.org ↗

Pros & Cons

Pros

Open source graph DB
Scalable
Multiple backends
Apache TinkerPop
Active community

Cons

Complex setup
Learning curve
Documentation gaps
Operational overhead
Neo4j often preferred

Key Features

Graph databaseDistributedGremlinMultiple backendsScalableOpen source

Pricing Plans

Pricing checked Aug 19, 2026

Free (Open Source)

Free

Full graph database
Apache 2.0 license
Multiple storage backends
Billions of vertices support
Linux Foundation project

Calculate your cost View full pricing

Is JanusGraph worth the price?

100/100

JanusGraph's pricing is exceptionally generous as it is entirely free, being an open-source project.

This makes it an incredibly fair and accessible option for anyone needing a distributed graph database without budget constraints. It's best for organizations and developers who prioritize cost-effectiveness and open-source flexibility.

Hidden Costs & Gotchas

Requires self-hosting infrastructure

No official vendor support included

Operational expertise needed

Integration costs with other systems

How JanusGraph Compares to Competitors

Unlike commercial graph databases like Neo4j Enterprise, which can cost thousands per month, or Amazon Neptune, which charges based on instance hours and storage, JanusGraph offers its full feature set at $0. This makes it a significantly more cost-effective choice for those willing to manage their own deployments.

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Best JanusGraph Alternatives

Top alternatives based on features, pricing, and user needs.

View full list →

Neo4jFreemium

Native graph database platform

4.5

ArangoDBPaid

Multi-model database for graphs, documents, and key-value

4.5

Amazon NeptunePaid

Fully managed graph database service on AWS

4.4

DgraphFreemium

Distributed graph database with GraphQL

4.7

OrientDBFree

The first multi-model open-source NoSQL database combining graphs and documents.

4.0

TigerGraphFreemium

Enterprise graph database and analytics

4.7

See all data & databases tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

All JanusGraph alternatives6+ tools ranked, pricing + verdict per pick JanusGraph vs Neo4jHead-to-head: features, pricing, who wins JanusGraph vs ArangoDBHead-to-head: features, pricing, who wins JanusGraph vs Amazon NeptuneHead-to-head: features, pricing, who wins

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JanusGraph FAQ

How does JanusGraph support scaling graph data?

JanusGraph is a distributed graph database designed to scale graph data across multiple machines. It provides scalable graph storage suitable for serious workloads by distributing the data.

Which query language does JanusGraph utilize?

JanusGraph uses Gremlin as its query language. This allows users to query relationships within their graph data effectively.

What kind of user or team benefits most from JanusGraph?

Organizations with massive graph data requirements choose JanusGraph for its scalable graph storage capabilities. It is particularly well-suited for teams managing large-scale, complex relationship data.

How is JanusGraph priced?

JanusGraph is free to use, as it is an open-source distributed graph database. There are no paid plans required to utilize its features.

Can JanusGraph integrate with different storage solutions?

Yes, JanusGraph supports multiple storage backends. This flexibility allows users to choose the underlying storage solution that best fits their infrastructure needs.

How does JanusGraph compare to Neo4j?

While both are graph databases, JanusGraph is an open-source distributed graph database supporting multiple backends and Apache TinkerPop. Neo4j is often preferred in scenarios where its specific features align better with project requirements, though JanusGraph offers strong scalability for massive datasets.

What are the main trade-offs when implementing JanusGraph?

Implementing JanusGraph comes with a complex setup and a learning curve. Users may also encounter documentation gaps and higher operational overhead compared to some alternatives.

Source: janusgraph.org

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