Amazon Neptune vs JanusGraph: Which is Better in 2026?
Choosing between Amazon Neptune and JanusGraph comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Amazon Neptune is our overall pick for data & databases workflows. Pick JanusGraph if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Amazon Neptune
Fully managed graph database service on AWS
Best for you if:
- • Amazon Neptune is a fully managed graph database service for building applications with connected data
- • It supports both property graph and RDF models with Apache TinkerPop and SPARQL query languages
JanusGraph
Distributed graph database for scale
Best for you if:
- • You need something completely free
- • JanusGraph is an open-source distributed graph database for massive datasets
- • It supports billions of vertices and edges with pluggable storage backends
| At a Glance |  Amazon Neptune |  JanusGraph |
|---|---|---|
Starts at | $0.1/db.r5.large hourOn-Demand | Free |
Best For | Data & Databases | Data & Databases |
Rating | - | - |
Choose Amazon Neptune or JanusGraph?
Choose Amazon Neptune if
Fully managed graph database service on AWS
- Managed graph database
- AWS integrated
- High availability
Choose JanusGraph if
Distributed graph database for scale
- Open source graph DB
- Scalable
- Multiple backends
- You want a fully free tool (Amazon Neptune requires payment)
| Feature | Amazon Neptune | JanusGraph |
|---|---|---|
| Pricing Model | Paid | Free |
| User Rating | ★4.4/5 30 reviews | No ratings yet |
| Categories | Data & DatabasesCloud & Infrastructure | Data & DatabasesCloud & Infrastructure |
In-Depth Analysis
Amazon Neptune
Fully managed graph database service on AWS
Strengths
- +Managed graph database
- +AWS integrated
- +High availability
- +SPARQL and Gremlin
- +Good for knowledge graphs
Weaknesses
- -AWS lock-in
- -Expensive
- -Learning curve
- -Complex pricing
- -Limited features vs Neo4j
Key features
JanusGraph
Distributed graph database for scale
Strengths
- +Open source graph DB
- +Scalable
- +Multiple backends
- +Apache TinkerPop
- +Active community
Weaknesses
- -Complex setup
- -Learning curve
- -Documentation gaps
- -Operational overhead
- -Neo4j often preferred
Key features
Pricing: Amazon Neptune vs JanusGraph
| Plan | Amazon Neptune | JanusGraph |
|---|---|---|
| Tier 1 | $0.1 /db.r5.large hour On-Demand | Free Free (Open Source) |
| Tier 2 | Usage-based Serverless | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on Amazon Neptune pricing and JanusGraph pricing.
Who Should Use What?
On a budget?
JanusGraph is free. Amazon Neptune is paid.
Go with: JanusGraph
Want the highest-rated option?
Neither has user reviews yet.
Go with: Amazon Neptune
Value user reviews?
Neither has user reviews yet.
Go with: Amazon Neptune
3 Questions to Help You Decide
What's your budget?
Amazon Neptune is paid. JanusGraph is free. Go with JanusGraph if free matters most.
What's your use case?
Both are data & databases tools. Compare their specific features to decide.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Amazon Neptune
- Our pick for this comparison
JanusGraph
- Completely free
The Bottom Line
Amazon Neptune is our pick. That said, JanusGraph is free, hard to beat on price.
Frequently Asked Questions
Is Amazon Neptune or JanusGraph better?
Amazon Neptune is rated in our evaluation. Amazon Neptune is paid and JanusGraph is free.
What are Amazon Neptune and JanusGraph used for?
Amazon Neptune: Fully managed graph database service on AWS. JanusGraph: Distributed graph database for scale.
What does Amazon Neptune cost vs JanusGraph?
Amazon Neptune is a paid tool. JanusGraph is completely free. Visit their websites for detailed pricing.