vioscaleAI
Comparison

Amazon Neptune vs JanusGraph

No clear leader: Amazon Neptune (58.1) and JanusGraph (54.1) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Amazon Neptune full profile →JanusGraph full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Amazon Neptune58
JanusGraph54
Score
vioscaleAI score
Amazon Neptune58 / 100medium · 73%
JanusGraph54 / 100medium · 67%
Pricing
Free tier
Amazon Neptune✓
JanusGraph✓
Model
Amazon Neptunefreemium
JanusGraphopen_source
Price level
Amazon Neptunelow
JanusGraphfree
Starting price
Amazon Neptune$0.15
JanusGraph–
Transparent
Amazon Neptune✗
JanusGraph✓
Integrations
Count
Amazon Neptune4
JanusGraph10
Security
Certifications
Amazon NeptuneSOC 2, FedRAMP, HIPAA
JanusGraph–
Disclosure policy
Amazon Neptune✓
JanusGraph–
Fedramp
Amazon Neptune✓
JanusGraph–
Gdpr
Amazon Neptune✓
JanusGraph–
Hipaa
Amazon Neptune✓
JanusGraph–
Pci
Amazon Neptune✓
JanusGraph–
Scorecard
Amazon Neptune–
JanusGraph6.4
Soc2
Amazon Neptune✓
JanusGraph–
Trust center
Amazon Neptunehttps://aws.amazon.com/security/
JanusGraph–
Vulnerabilities
Reliability
Status page
Amazon Neptune✓
JanusGraph✓
Adoption
Dependent repos
Amazon Neptune–
JanusGraph250
Github stars
Amazon Neptune–
JanusGraph5,855
Activity
Commits last 30d
Amazon Neptune–
JanusGraph97
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–
Content
Faq
Amazon Neptune5 items
JanusGraph5 items

Capabilities

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

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
Deployment
Amazon NeptuneManaged
JanusGraphSelf-hosted
Search
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 fully managed, serverless graph database that automatically scales for handling billions of relationships. Supports standard query languages and provides ACID transactions, replication, and encryption to enhance AI applications with better context.

Independently observed

JanusGraph

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

from $0.15/vCPU-HourUsage-basedFree tier30-day trial

Usage-based pricing. Free tier for 30 days. Options: on-demand hourly, serverless per capacity unit, or annual savings plan.

  • On-demand$0.15 per vCPU-Hour
  • Serverless-
  • Database Savings Plan-
as of verify ↗

JanusGraph

Open sourceFree tier

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

as of verify ↗

Platform & deployment

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

Platforms
Web
Amazon Neptune✓
JanusGraph✓
CLI
Amazon Neptune✓
JanusGraph✓
Deployment
Cloud / SaaS
Amazon Neptune✓
JanusGraph✗
Self-hosted
Amazon Neptune✗
JanusGraph✓

Integrations

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

Amazon Neptune

6 total
  • Amazon Bedrock Knowledge Bases
  • Strands AI Agents SDK
  • Amazon Bedrock
  • LangChain
  • Strands AI
  • GraphStorm
Independently observed

JanusGraph

25 total
  • Apache Cassandra
  • Apache HBase
  • Google Cloud Bigtable
  • Oracle BerkeleyDB
  • ScyllaDB
  • Elasticsearch
  • Apache Solr
  • Apache Lucene
  • Apache Spark
  • Aerospike
  • DynamoDB
  • FoundationDB
  • Gremlin
  • Apache TinkerPop
  • Arcade Analytics
  • Graphexp
  • Graph Explorer
  • Graphlytic
  • ReGraph
  • Cassandra
  • HBase
  • Bigtable
  • Amazon Managed KeySpace
  • Solr
  • +1 more
Independently observed
Still deciding?

Amazon Neptune or JanusGraph: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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