Comparison

JanusGraph vs Virtuoso

On the evidence we track, JanusGraph leads this comparison with a composite score of 53/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

JanusGraph full profile →Virtuoso full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★JanusGraph53

Virtuoso35

Attribute comparison across 2 tools
Attribute	JanusGraphLeader	Virtuoso
Vioscale score	53 / 100medium · 70%	35 / 100medium · 62%
Pricing
Free tierpricing.free_tier	✓	✗
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	free	high
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	14	6
Security
Scorecardsecurity.scorecard	6.5	2.6
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.janusgraph%3Ajanusgraph-core&per_page=100 · Last 12m: 0	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.openlinksw%3Avirtjdbc4&per_page=100 · Last 12m: 0
Reliability
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	250	1
Github starsadoption.github_stars	5,829	973
Package downloads weeklyadoption.package_downloads_weekly	-	22
Activity
Commits last 30dactivity.commits_last_30d	9	16
Release
Cadence daysrelease.cadence_days	74	143
Historyrelease.history	20 items	19 items
License
Spdxlicense.spdx	-	BSD
Language
Primarylanguage.primary	Java	C
Market
Availabilitymarket.availability	-	Available worldwide · Popular in US

Score

Vioscale score

JanusGraph53 / 100medium · 70%

Virtuoso35 / 100medium · 62%

Pricing

Free tier

JanusGraph✓

Virtuoso✗

Model

JanusGraphcommercial

Virtuosocommercial

Price level

JanusGraphfree

Virtuosohigh

Transparent

JanusGraph✓

Virtuoso✓

Integrations

Count

JanusGraph14

Virtuoso6

Security

Scorecard

JanusGraph6.5

Virtuoso2.6

Vulnerabilities

JanusGraphCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.janusgraph%3Ajanusgraph-core&per_page=100 · Last 12m: 0

VirtuosoCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.openlinksw%3Avirtjdbc4&per_page=100 · Last 12m: 0

Reliability

Status page

JanusGraph✓

Virtuoso✓

Adoption

Dependent repos

JanusGraph250

Virtuoso1

Github stars

JanusGraph5,829

Virtuoso973

Package downloads weekly

JanusGraph–

Virtuoso22

Activity

Commits last 30d

JanusGraph9

Virtuoso16

Release

Cadence days

JanusGraph74

Virtuoso143

History

JanusGraph20 items

Virtuoso19 items

License

Spdx

JanusGraph–

VirtuosoBSD

Language

Primary

JanusGraphJava

VirtuosoC

Market

Availability

JanusGraph–

VirtuosoAvailable worldwide · Popular in US

Capabilities

Feature-by-feature on the axes that matter for graph databases. “-” means undocumented, not absent.

Capability comparison for Graph Databases
Capability	JanusGraph	Virtuoso
Model
Graph model	Property graph	RDF / triple
Query language(s)	Gremlin	SPARQL
Transactions
ACID transactions	Full	-
Consistency model	Tunable	-
Architecture
Storage	Pluggable backend	-
Distributed / scale	Sharded	-
Replication / HA	✓	-
OLTP vs OLAP	Both	Both
Deployment
Deployment	Self-hosted	Self-hosted
Search
Full-text search	Via index	-
Built-in vector search	-	-
Licensing
Licence class	Permissive OSS	-
Portability
openCypher / TinkerPop standard	✓	-

Model

Graph model

JanusGraphProperty graph

VirtuosoRDF / triple

Query language(s)

JanusGraphGremlin

VirtuosoSPARQL

Transactions

ACID transactions

JanusGraphFull

Virtuoso-

Consistency model

JanusGraphTunable

Virtuoso-

Architecture

Storage

JanusGraphPluggable backend

Virtuoso-

Distributed / scale

JanusGraphSharded

Virtuoso-

Replication / HA

JanusGraph✓

Virtuoso-

OLTP vs OLAP

JanusGraphBoth

VirtuosoBoth

Deployment

JanusGraphSelf-hosted

VirtuosoSelf-hosted

Full-text search

JanusGraphVia index

Virtuoso-

Built-in vector search

JanusGraph-

Virtuoso-

Licensing

Licence class

JanusGraphPermissive OSS

Virtuoso-

Portability

openCypher / TinkerPop standard

JanusGraph✓

Virtuoso-

What each one is

The product in its own terms, so the numbers below have context.

JanusGraph

Leader

A database system that stores and queries extremely large graphs spread across multiple machines, enabling many users to run complex lookups simultaneously with strong transaction guarantees and support for batch analytics.

Independently observed

Virtuoso

Enterprise-grade platform designed to consolidate and govern data from diverse sources—databases, knowledge graphs, file systems, and APIs—with built-in support for AI agents and language model integration.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

JanusGraph

Leader

Open sourceFree tier

Fully open source under Apache 2 license. No commercial licensing required.

as of 2026-08-14verify ↗

Virtuoso

from $99.99/moPerpetual licence

From $99.99 perpetual license, Enterprise custom pricing

Personal$99.99 one-time
Developer$199 one-time
Project$499 one-time
EnterpriseContact sales
- Unlimited Concurrent Sessions
- Unlimited CPU Cores
- Server-Grade Operating Systems
- Enterprise Support
- Custom Licensing Terms

as of 2026-08-14verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	JanusGraph	Virtuoso
WebPlatforms	✓	✗
macOSPlatforms	✗	✓
WindowsPlatforms	✗	✓
LinuxPlatforms	✗	✓
CLIPlatforms	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗

Platforms

Web

JanusGraph✓

Virtuoso✗

macOS

JanusGraph✗

Virtuoso✓

Windows

JanusGraph✗

Virtuoso✓

Linux

JanusGraph✗

Virtuoso✓

CLI

JanusGraph✓

Virtuoso✓

Deployment

Self-hosted

JanusGraph✓

Virtuoso✓

On-premise

JanusGraph✓

Virtuoso✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

JanusGraph

Leader

14 total

Apache Cassandra
Apache HBase
Google Cloud Bigtable
Oracle BerkeleyDB
ScyllaDB
Elasticsearch
Apache Solr
Apache Lucene
Apache Spark
Aerospike
DynamoDB
FoundationDB
Gremlin
Apache TinkerPop

Independently observed

Virtuoso

6 total

SQLAlchemy
RDFLib
SQL databases
NoSQL databases
Linked Data sources
APIs

Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.