Stardog alternatives

3 tools to consider instead of Stardog, shown against it.

Stardog Ontotext GraphDB Amazon Neptune Neo4j
Vendor Stardog Union Ontotext (Graphwise) Amazon Web Services Neo4j, Inc.
Pricing model Free tier + paid plans Free tier + paid plans Usage-based Free tier + paid plans
Free tier Yes Yes No Yes
Deployment Cloud, Self-hosted Self-hosted, Cloud Cloud Cloud, Self-hosted
Open source No No No No
Best for Organizations building a reasoning-capable knowledge graph across existing relational systems without full data migration. Organizations building an ontology-driven enterprise knowledge graph that needs reasoning and semantic search together. AWS-centric teams who want a managed graph database without operating clusters, with flexibility to pick property-graph or RDF. Teams doing fraud detection, recommendations or knowledge graphs who want the most mature Cypher/graph tooling ecosystem.
Pricing

Stardog Free is a renewable one-year license with reduced features; Enterprise pricing is quoted after a consultation.

Stardog Free $0
Stardog Enterprise custom quote

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Free edition allows one parallel query; Enterprise pricing is quoted after contacting sales.

GraphDB Free Free

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Billed per instance-hour plus storage and I/O for provisioned clusters, or per Neptune Capacity Unit for Serverless.

Neptune Database (Standard, db.r5.large) $0.348/hour
Neptune Database Storage $0.10/GB-month
Neptune Database I/O (Standard) $0.20 per million requests
Neptune Analytics $7.68 per m-NCU-hour

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

AuraDB is billed per GB/month above a free tier; self-managed Community edition is free, Enterprise requires a quote.

AuraDB Free $0
AuraDB Professional from $65/GB/month
AuraDB Business Critical from $146/GB/month
AuraDB Virtual Dedicated Cloud custom quote

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Features
  • SPARQL query language over RDF triples
  • OWL/RDFS reasoning and inference
  • Virtual Graphs federate live relational sources
  • Stardog Designer for ontology and model building
  • Full-text and geospatial search
  • Data provenance and versioning
  • Role-based access control
  • SPARQL query language over RDF triples
  • OWL/RDFS reasoning and inference
  • RDF4J-compliant API
  • Elasticsearch, OpenSearch, Solr and Kafka connectors (Enterprise)
  • Cluster support for high availability (Enterprise)
  • Ontology and taxonomy management
  • GraphQL and REST access to the same data
  • Dual model: property graph (Gremlin, openCypher) or RDF (SPARQL)
  • Neptune Serverless with per-second capacity billing
  • Neptune Analytics for algorithms and vector search
  • Neptune ML for graph neural network predictions via SageMaker
  • Multi-AZ high availability with automated failover
  • Bulk loader from Amazon S3
  • IAM-based fine-grained access control
  • Automated, incremental backups
  • Cypher query language (basis of ISO GQL)
  • Native graph storage and index-free adjacency
  • Graph Data Science library of algorithms
  • Vector and full-text search alongside graph queries
  • Causal clustering for high availability
  • Bloom for no-code graph visualization
  • Bulk import and ETL tooling
  • Role-based access control

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