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Head-to-head · Knowledge Graph Software

Neo4j vs AllegroGraph

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Neo4j #1 in Knowledge Graph Software 9.3/10 Free plan · 14-day trial Free planFree trial✓ 0 of 4 features Visit Neo4j
AllegroGraph #6 in Knowledge Graph Software 8.6/10 Free plan Free plan✓ 4 of 4 features Visit AllegroGraph

Neo4j leads on 0 checks, AllegroGraph on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreNeo4j · 9.3/10
  • Free planboth
  • Free trialonly Neo4j
  • Most featuresAllegroGraph · 4 of 4

Neo4j scores higher on our rubric for knowledge graph software: 9.3 against 8.6 out of 10; our editors rank them #1 and #6.

Neo4j is the better fit for property-graph applications with strong developer tooling. AllegroGraph is the better fit for enterprise semantic graphs with advanced operations.

  • Neo4j fits best

    Property-graph applications with strong developer tooling

  • AllegroGraph fits best

    Enterprise semantic graphs with advanced operations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Neo4j 9.3/10 Visit ↗ AllegroGraph 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #1 in Knowledge Graph Software #6 in Knowledge Graph Software
Best for Property-graph applications with strong developer tooling Enterprise semantic graphs with advanced operations
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial 14 days —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web, Windows, macOS, Linux Web, Windows, macOS, Linux
Support Tickets, Live chat, Community, Docs Email, Docs
Integrations 10 integrations 9 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features Neo4j 0/4 · AllegroGraph 4/4
Ontology modeling Not checked yet ✓ (best)
Semantic reasoning Not checked yet ✓ (best)
RDF/SPARQL support Not checked yet ✓ (best)
Graph visualization Not checked yet ✓ (best)
Specs
Import formats Not checked yet JSON-LD, N-Quads, N-Triples, Extended N-Quads, RDF/XML, TriG, TriX, Turtle, JSON, JSONLines, CSV
Deployment Not checked yet Both
Query languages Cypher, GQL SPARQL, Prolog
Our review
Pros
  • Native nodes, relationships, properties, and Cypher queries
  • ACID transactions, clustering, failover, and horizontal scaling
  • Graph algorithms, vector search, connectors, and official libraries
  • Free plan supports up to 5 million triples without expiration
  • Combines SPARQL, Prolog, RDF storage, and semantic reasoning
  • Supports sharding, federation, replication, and cloud or on-premises deployment
Cons
  • Professional starts at $65 per GB per month
  • Business Critical requires a minimum 2GB cluster
  • Native property-graph focus may not suit RDF-first projects
  • Enterprise pricing is quote-based
  • Advanced capabilities may exceed the needs of smaller graph projects
  • The Free plan is limited to 5 million triples
Our verdict

Neo4j is a native property graph database for developers, data scientists, and organizations working with connected data. It stores nodes, relationships, and properties, then exposes them through the Cypher declarative query language.…

Read the review →

AllegroGraph is a semantic graph database for organizations building knowledge graphs, data fabrics, and AI applications. It stores RDF, graph, vector, document, and temporal data, with support for SPARQL, OWL reasoning, SHACL, rules, and…

Read the review →
  1. Neo4jKnowledge Graph Software 9.3Free plan · 14-day trial
  2. AllegroGraphKnowledge Graph Software 8.6Free plan

Strengths and trade-offs

  • Neo4j — where it wins

    • Native nodes, relationships, properties, and Cypher queries
    • ACID transactions, clustering, failover, and horizontal scaling
    • Graph algorithms, vector search, connectors, and official libraries

    Where it doesn't

    • Professional starts at $65 per GB per month
    • Business Critical requires a minimum 2GB cluster
    • Native property-graph focus may not suit RDF-first projects

  • AllegroGraph — where it wins

    • Free plan supports up to 5 million triples without expiration
    • Combines SPARQL, Prolog, RDF storage, and semantic reasoning
    • Supports sharding, federation, replication, and cloud or on-premises deployment

    Where it doesn't

    • Enterprise pricing is quote-based
    • Advanced capabilities may exceed the needs of smaller graph projects
    • The Free plan is limited to 5 million triples
  • Neo4j9.3/10 · Free plan · 14-day trial

    A developer-focused property graph with broad tooling, cloud options, and AI-ready search.

    Visit Neo4jFull verdict →
  • AllegroGraph8.6/10 · Free plan

    A mature graph database combining semantic reasoning, operations, visualization, and AI features.

    Visit AllegroGraphFull verdict →

More comparisons

All knowledge graph software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update