Amazon Neptune vs NebulaGraph

Amazon Neptune8.9Visit NebulaGraph8.7Visit

Higher score Amazon Neptune #4 in Graph Database Hosting 8.9/10 30-day trial Free trial✓ 1 of 3 features Visit Amazon Neptune

vs

NebulaGraph #6 in Graph Database Hosting 8.7/10 Free plan · 14-day trial Free planFree trial✓ 1 of 3 features Visit NebulaGraph

• Amazon Neptune fits best

  AWS teams needing managed multi-model graph hosting

• NebulaGraph fits best

  Open-source distributed graph deployments

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Side by side

Feature	Amazon Neptune 8.9/10 Visit ↗	NebulaGraph 8.7/10 Visit ↗
At a glance
Editor score	8.9	8.7
Ranking	#4 in Graph Database Hosting	#6 in Graph Database Hosting
Best for	AWS teams needing managed multi-model graph hosting	Open-source distributed graph deployments
Pricing model	Paid	Free
Starting price	—	Free
Free plan	—	✓ (best)
Free trial	30 days	14 days
Free trial length	30 days	14 days · no card needed
Deployment	Cloud	Cloud, Self-hosted
Platforms	Web	Web, Linux, Windows, macOS
Support	Docs	Docs, Tickets
Integrations	8 integrations	3 integrations
Built for	Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Amazon Neptune 1/3 · NebulaGraph 1/3
High availability	Not checked yet	Not checked yet
Automated backups	Not checked yet	Not checked yet
Vector search	✓	✓
Specs
Supported engines	Not checked yet	Not checked yet
Query languages	Gremlin, openCypher, SPARQL	nGQL, openCypher, ISO-GQL
Deployment scope	Not checked yet	Not checked yet
Storage limit	Not checked yet	Not checked yet
Our review
Pros	Supports Gremlin, openCypher, and SPARQL across graph models Multi-AZ failover, read replicas, backups, and point-in-time recovery Neptune Analytics adds graph algorithms and vector similarity search	Distributed storage with horizontal scalability nGQL and openCypher-compatible query support Native vector search, algorithms, and visualization tools
Cons	No permanent free plan Usage-based pricing requires cost monitoring Best fit depends on the AWS ecosystem	Deployment choices may require more technical planning The product spans multiple editions and deployment models Narrow relational workloads may not need its graph-focused feature set
Our verdict	Amazon Neptune is a fully managed cloud graph database service for applications built on highly connected datasets. It supports property graphs through Gremlin and openCypher, and RDF graphs through SPARQL, giving teams a multi-model… Read the review →	NebulaGraph is an open-source, distributed graph database for developers and organizations working with highly connected data. It represents entities as vertices and relationships as edges, then supports traversal and pattern matching… Read the review →

Strengths and trade-offs

• Amazon Neptune — where it wins

  • Supports Gremlin, openCypher, and SPARQL across graph models
  • Multi-AZ failover, read replicas, backups, and point-in-time recovery
  • Neptune Analytics adds graph algorithms and vector similarity search

  Where it doesn't

  • No permanent free plan
  • Usage-based pricing requires cost monitoring
  • Best fit depends on the AWS ecosystem

• NebulaGraph — where it wins

  • Distributed storage with horizontal scalability
  • nGQL and openCypher-compatible query support
  • Native vector search, algorithms, and visualization tools

  Where it doesn't

  • Deployment choices may require more technical planning
  • The product spans multiple editions and deployment models
  • Narrow relational workloads may not need its graph-focused feature set

• Amazon Neptune8.9/10 · 30-day trial

  A capable AWS-managed choice for property-graph, RDF, analytics, and vector workloads.

  Visit Amazon NeptuneFull verdict →
• NebulaGraph8.7/10 · Free plan · 14-day trial

  A flexible open-source graph database for distributed data and graph analytics.

  Visit NebulaGraphFull verdict →