Amazon Neptune vs Neo4j: Which is Better in 2026?
Choosing between Amazon Neptune and Neo4j 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: Neo4j wins this matchup. MongoDB is our overall Managed Databases pick. MongoDB is our free Managed Databases pick. Pick Amazon Neptune if you need its specific feature set.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Amazon Neptune
Fully managed graph database service on AWS
Best for you if:
- • You want managed graph database
Neo4j
Native graph database platform
Best for you if:
- • You want a free tier before you commit
| At a Glance | Amazon Neptune | Neo4j |
|---|---|---|
Starts at | $0.1/db.r5.large hour On-Demand | Free Free plan |
Category | Data & Databases Cloud & Infrastructure | Data & Databases Managed Databases |
Rating | 2.4/5 Trustpilot 1.3 · G2 4.4 398 reviews | 4.5/5 G2 4.5 133 reviews |
Free plan | No | Yes |
Watch out for | Backup storage costs | Memory sizing is critical: Neo4j performance depends on keeping the working graph in RAM. Undersized instances cause dramatic performance degradation, pushing you to larger (more expensive) instances |
Choose Amazon Neptune or Neo4j?
Choose Amazon Neptune if
- You want managed graph database
- You want AWS integrated
- Budget matters ($0.1/db.r5.large hour vs Free)
Choose Neo4j if
- You want a free tier before you commit
- You want best graph database
- You want cypher query language
In-Depth Analysis
Amazon Neptune
Fully managed graph database service on AWS
Amazon Neptune's pricing is fair, especially with the On-Demand tier starting at $0.1 per db.r5.large hour, offering a predictable cost for consistent usage.
Watch out
Backup storage costs
Strengths
- Pro: Managed graph database
- Pro: AWS integrated
- Pro: High availability
- Pro: SPARQL and Gremlin
- Pro: Good for knowledge graphs
Weaknesses
- Con: AWS lock-in
- Con: Expensive
- Con: Learning curve
- Con: Complex pricing
- Con: Limited features vs Neo4j
Key features
Neo4j
Native graph database platform
Neo4j AuraDB Free is a genuine free tier, no credit card, enough to learn Cypher and prototype graph applications.
Watch out
Memory sizing is critical: Neo4j performance depends on keeping the working graph in RAM. Undersized instances cause dramatic performance degradation, pushing you to larger (more expensive) instances
Strengths
- Pro: Best graph database
- Pro: Cypher query language
- Pro: Good visualization
- Pro: ACID compliant
- Pro: Active community
Weaknesses
- Con: Expensive enterprise
- Con: Learning curve
- Con: Not for all use cases
- Con: Memory intensive
- Con: Scaling limits
Key features
Pricing: Amazon Neptune vs Neo4j
| Plan | Amazon Neptune | Neo4j |
|---|---|---|
| Tier 1 | $0.1 /db.r5.large hour On-Demand | Free Community |
| Tier 2 | Usage-based Serverless | Free AuraDB Free |
| Tier 3 | N/A | $65 month AuraDB Pro |
Pricing verified from each vendor's public pricing page. Compare in detail on Amazon Neptune pricing and Neo4j pricing.
Key Takeaways
Neo4j
- Higher user rating: 4.5/5 vs 2.4/5
- Free tier available
- Our pick for this comparison
Amazon Neptune
- Larger review base (398 reviews)
The Bottom Line
Neo4j wins this matchup. MongoDB is our overall Managed Databases pick. MongoDB is our free Managed Databases pick.
Frequently Asked Questions
Is Amazon Neptune or Neo4j better in 2026?
Neo4j wins this matchup. MongoDB is our overall Managed Databases pick. MongoDB is our free Managed Databases pick. Pick Amazon Neptune for data & databases workflows (main strength: managed graph database). Pick Neo4j for data & databases workflows (main strength: best graph database).
What are Amazon Neptune and Neo4j used for?
Amazon Neptune: Fully managed graph database service on AWS. Neo4j: Native graph database platform.
What does Amazon Neptune cost vs Neo4j?
Amazon Neptune's paid plans start at $0.1/db.r5.large hour (On-Demand). Neo4j's paid plans start at Free (AuraDB Pro).
What's the main difference between Amazon Neptune and Neo4j?
Amazon Neptune's main strength: managed graph database. Neo4j's main strength: best graph database.