Comparison

Amazon Neptune vs JanusGraph

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.

Amazon Neptune full profile →JanusGraph full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

Amazon Neptune45

★JanusGraph53

Attribute comparison across 2 tools
Attribute	Amazon Neptune	JanusGraphLeader
Vioscale score	45 / 100medium · 56%	53 / 100medium · 70%
Pricing
Free tierpricing.free_tier	✗	✓
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	unknown	free
Transparentpricing.transparent	✓	✓
Integrations
Countintegrations.count	2	14
Security
Disclosure policysecurity.disclosure_policy	✓	-
Scorecardsecurity.scorecard	-	6.5
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
Reliability
Status pagereliability.status_page	✓	✓
Adoption
Dependent reposadoption.dependent_repos	-	250
Github starsadoption.github_stars	-	5,829
Activity
Commits last 30dactivity.commits_last_30d	-	9
Release
Cadence daysrelease.cadence_days	-	74
Historyrelease.history	-	20 items
Language
Primarylanguage.primary	-	Java
Market
Availabilitymarket.availability	Available worldwide · Popular in US	-

Score

Vioscale score

Amazon Neptune45 / 100medium · 56%

JanusGraph53 / 100medium · 70%

Pricing

Free tier

Amazon Neptune✗

JanusGraph✓

Model

Amazon Neptunecommercial

JanusGraphcommercial

Price level

Amazon Neptuneunknown

JanusGraphfree

Transparent

Amazon Neptune✓

JanusGraph✓

Integrations

Count

Amazon Neptune2

JanusGraph14

Security

Disclosure policy

Amazon Neptune✓

JanusGraph–

Scorecard

Amazon Neptune–

JanusGraph6.5

Vulnerabilities

Amazon Neptune–

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

Reliability

Status page

Amazon Neptune✓

JanusGraph✓

Adoption

Dependent repos

Amazon Neptune–

JanusGraph250

Github stars

Amazon Neptune–

JanusGraph5,829

Activity

Commits last 30d

Amazon Neptune–

JanusGraph9

Release

Cadence days

Amazon Neptune–

JanusGraph74

History

Amazon Neptune–

JanusGraph20 items

Language

Primary

Amazon Neptune–

JanusGraphJava

Market

Availability

Amazon NeptuneAvailable worldwide · Popular in US

JanusGraph–

Capabilities

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

Capability comparison for Graph Databases
Capability	Amazon Neptune	JanusGraph
Model
Graph model	Multi-model	Property graph
Query language(s)	Gremlin, openCypher, SPARQL	Gremlin
Transactions
ACID transactions	Full	Full
Consistency model	-	Tunable
Architecture
Storage	-	Pluggable backend
Distributed / scale	Sharded	Sharded
Replication / HA	✓	✓
OLTP vs OLAP	Both	Both
Deployment
Deployment	Managed	Self-hosted
Search
Full-text search	None	Via index
Built-in vector search	✓	-
Licensing
Licence class	Proprietary	Permissive OSS
Portability
openCypher / TinkerPop standard	✓	✓

Model

Graph model

Amazon NeptuneMulti-model

JanusGraphProperty graph

Query language(s)

Amazon NeptuneGremlin, openCypher, SPARQL

JanusGraphGremlin

Transactions

ACID transactions

Amazon NeptuneFull

JanusGraphFull

Consistency model

Amazon Neptune-

JanusGraphTunable

Architecture

Storage

Amazon Neptune-

JanusGraphPluggable backend

Distributed / scale

Amazon NeptuneSharded

JanusGraphSharded

Replication / HA

Amazon Neptune✓

JanusGraph✓

OLTP vs OLAP

Amazon NeptuneBoth

JanusGraphBoth

Deployment

Amazon NeptuneManaged

JanusGraphSelf-hosted

Full-text search

Amazon NeptuneNone

JanusGraphVia index

Built-in vector search

Amazon Neptune✓

JanusGraph-

Licensing

Licence class

Amazon NeptuneProprietary

JanusGraphPermissive OSS

Portability

openCypher / TinkerPop standard

Amazon Neptune✓

JanusGraph✓

What each one is

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

Amazon Neptune

A cloud-based graph database that scales serverlessly and analyzes relationships across structured and unstructured data. Designed to improve AI application accuracy through integrated GraphRAG capabilities and support for agentic memory tools.

Independently observed

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

Pricing

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

Amazon Neptune

Hybrid

Pay-as-you-go pricing with on-demand, serverless, and savings plan options. No minimum fees or upfront commitments for on-demand/serverless.

On-demandPay-as-you-go with no commitments
- No minimum fees
- No upfront commitments
- Flexible configuration
ServerlessServerless with automatic scaling
- Automatic scaling
- No minimum fees
- No upfront commitments
Database Savings PlansUsage-based savings plan with 1-year commitment
- Savings vs. on-demand
- 1-year commitment
Neptune AnalyticsPer m-NCU-hour billing with pause option
- Fast analytics on billions of connections
- In-memory storage
- Optimized graph algorithms
- Low-latency queries
- Vector search
- +1 more

as of 2026-08-01verify ↗

JanusGraph

Leader

Open sourceFree tier

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

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	Amazon Neptune	JanusGraph
WebPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✗
Self-hostedDeployment	✗	✓
On-premiseDeployment	✗	✓

Platforms

Web

Amazon Neptune✓

JanusGraph✓

CLI

Amazon Neptune✓

JanusGraph✓

Deployment

Cloud / SaaS

Amazon Neptune✓

JanusGraph✗

Self-hosted

Amazon Neptune✗

JanusGraph✓

On-premise

Amazon Neptune✗

JanusGraph✓

Integrations

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

Amazon Neptune

2 total

Amazon Bedrock Knowledge Bases
Strands AI Agents SDK

Independently observed

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

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