Comparison

NebulaGraph vs Virtuoso

On the evidence we track, NebulaGraph leads this comparison with a composite score of 41/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

NebulaGraph full profile →Virtuoso full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★NebulaGraph41

Virtuoso35

Attribute comparison across 2 tools
Attribute	NebulaGraphLeader	Virtuoso
Vioscale score	41 / 100medium · 61%	35 / 100medium · 62%
Pricing
Free tierpricing.free_tier	✓	✗
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	low	high
Transparentpricing.transparent	✗	✓
Integrations
Countintegrations.count	7	6
Security
Gdprsecurity.gdpr	✓	-
Scorecardsecurity.scorecard	6.2	2.6
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.vesoft%3Anebula-spark-connector&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	5	1
Github starsadoption.github_stars	12,365	973
Package downloads weeklyadoption.package_downloads_weekly	-	22
Activity
Commits last 30dactivity.commits_last_30d	0	16
Release
Cadence daysrelease.cadence_days	74	143
Historyrelease.history	20 items	19 items
License
Spdxlicense.spdx	Apache-2.0	BSD
Language
Primarylanguage.primary	C++	C
Market
Availabilitymarket.availability	Available worldwide · Popular in US · HQ US	Available worldwide · Popular in US

Score

Vioscale score

NebulaGraph41 / 100medium · 61%

Virtuoso35 / 100medium · 62%

Pricing

Free tier

NebulaGraph✓

Virtuoso✗

Model

NebulaGraphcommercial

Virtuosocommercial

Price level

NebulaGraphlow

Virtuosohigh

Transparent

NebulaGraph✗

Virtuoso✓

Integrations

Count

NebulaGraph7

Virtuoso6

Security

Gdpr

NebulaGraph✓

Virtuoso–

Scorecard

NebulaGraph6.2

Virtuoso2.6

Vulnerabilities

NebulaGraphCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.vesoft%3Anebula-spark-connector&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

NebulaGraph–

Virtuoso✓

Adoption

Dependent repos

NebulaGraph5

Virtuoso1

Github stars

NebulaGraph12,365

Virtuoso973

Package downloads weekly

NebulaGraph–

Virtuoso22

Activity

Commits last 30d

NebulaGraph0

Virtuoso16

Release

Cadence days

NebulaGraph74

Virtuoso143

History

NebulaGraph20 items

Virtuoso19 items

License

Spdx

NebulaGraphApache-2.0

VirtuosoBSD

Language

Primary

NebulaGraphC++

VirtuosoC

Market

Availability

NebulaGraphAvailable worldwide · Popular in US · HQ US

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	NebulaGraph	Virtuoso
Model
Graph model	Property graph	RDF / triple
Query language(s)	nGQL, OpenCypher, ISO-GQL	SPARQL
Transactions
ACID transactions	Full	-
Consistency model	Strong	-
Architecture
Storage	Pluggable backend	-
Distributed / scale	Sharded	-
Replication / HA	✓	-
OLTP vs OLAP	Both	Both
Deployment
Deployment	Self-hosted	Self-hosted
Search
Full-text search	Built-in	-
Built-in vector search	✓	-
Licensing
Licence class	Permissive OSS	-
Portability
openCypher / TinkerPop standard	✓	-

Model

Graph model

NebulaGraphProperty graph

VirtuosoRDF / triple

Query language(s)

NebulaGraphnGQL, OpenCypher, ISO-GQL

VirtuosoSPARQL

Transactions

ACID transactions

NebulaGraphFull

Virtuoso-

Consistency model

NebulaGraphStrong

Virtuoso-

Architecture

Storage

NebulaGraphPluggable backend

Virtuoso-

Distributed / scale

NebulaGraphSharded

Virtuoso-

Replication / HA

NebulaGraph✓

Virtuoso-

OLTP vs OLAP

NebulaGraphBoth

VirtuosoBoth

Deployment

NebulaGraphSelf-hosted

VirtuosoSelf-hosted

Full-text search

NebulaGraphBuilt-in

Virtuoso-

Built-in vector search

NebulaGraph✓

Virtuoso-

Licensing

Licence class

NebulaGraphPermissive OSS

Virtuoso-

Portability

openCypher / TinkerPop standard

NebulaGraph✓

Virtuoso-

What each one is

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

NebulaGraph

Leader

NebulaGraph is a distributed graph database built for processing complex relationship data with millisecond latency. It enables fraud detection, recommendations, knowledge graphs, and real-time analytics across large interconnected datasets for enterprises.

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.

NebulaGraph

Leader

from $0.35/moHybridFree tier14-day trial

Free open-source edition; enterprise licensing and managed cloud options available

Open-source EditionFree
- Subset of core features
- Graph query language support (nGQL/openCypher, ISO-GQL)
- Graph algorithms and analytics
- Community support
Enterprise EditionContact sales
- Enhanced performance
- Enterprise-grade stability and security
- Premium support service
- Multiple deployment methods
- Advanced features: REST API, vector search, multi-graph queries, plugin management
- +3 more
NebulaGraph CloudFrom $0.35/hour (beta pricing with 70% discount); 14-day free trial
- One-click deployment and scaling
- High availability with multi-data center replication
- Automatic backup and restoration
- Integrated visualization tools (Nebula Studio, Explorer, Dashboard)
- Fine-grained access control

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	NebulaGraph	Virtuoso
macOSPlatforms	✗	✓
WindowsPlatforms	✗	✓
LinuxPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✓	✓

Platforms

macOS

NebulaGraph✗

Virtuoso✓

Windows

NebulaGraph✗

Virtuoso✓

Linux

NebulaGraph✓

Virtuoso✓

CLI

NebulaGraph✓

Virtuoso✓

Deployment

Cloud / SaaS

NebulaGraph✓

Virtuoso✗

Self-hosted

NebulaGraph✓

Virtuoso✓

Integrations

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

NebulaGraph

Leader

7 total

Azure Marketplace
AWS (planned)
Google Cloud Platform (planned)
Nebula Studio
Nebula Explorer
Nebula Dashboard
ElasticSearch

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.