Updated for 2026
PostgreSQLvs
Neo4j
Not sure which fits your workflow in 2026? Compare pricing, features, and trade-offs — then switch tools below to explore more options in this category.
dev-database
PostgreSQL
PostgreSQL is the open-source relational database many modern stacks standardize on — powerful SQL, extensions, and a vast ecosystem.
Visit PostgreSQLdev-database
Neo4j
Neo4j is the mainstream graph database for modeling highly connected data — useful for knowledge graphs, fraud, and recommendations.
Visit Neo4jBasics
| Feature | PostgreSQL | Neo4j |
|---|---|---|
| Released | 1996 | 2007 |
| Company | PostgreSQL Global Development Group | Neo4j, Inc. |
| Country | International | United States |
| Region / Availability | Self-host / multi-cloud | Self-host / multi-cloud |
Pricing comparison
| Plan | PostgreSQL | Neo4j |
|---|---|---|
| Model | open-source | freemium |
| Free tier | Yes | Yes |
| Starts at | $0/mo | $0/mo |
| Plan 1 | Open Source: Free | Community / Aura Free: Free |
| Plan 2 | Managed clouds: Vendor pricingMany managed hosts available | Aura Professional: Usage-based |
| Plan 3 | — | Enterprise: Custom |
Feature checklist
| Feature | PostgreSQL | Neo4j |
|---|---|---|
| Open Source | ✓https://github.com/postgres/postgres | ✓https://github.com/neo4j |
| Self-host Option | ✓ | ✓ |
| ACID | Full ACID compliance | Full ACID graph transactions |
| Index Support | B-tree, Hash, GiST, GIN, BRIN, and extension indexes (e.g. vectors) | Range, text, point, full-text, and vector indexes |
| Concurrency | Excellent MVCC for mixed read/write workloads | Strong for graph queries; clustering on Enterprise/Aura |
| Scalability | Vertical scale + replicas; sharding via extensions/ops | Causal clustering / Aura scale for connected data |
| SQL Support | ✓ | ✗ |
| Postgres Compatible | ✓ | ✗ |
| Serverless Database | ✗ | ✓ |
| Vector Search | ✓ | ✓ |
| Realtime | ✗ | ✗ |
| Built-in Auth | ✗ | ✗ |
| Blob / File Storage | ✗ | ✗ |
| Edge Compatible | ✗ | ✗ |
| AI SQL / NL Query | ✗ | ✗ |
| AI Schema Assist | ✗ | ✗ |
| AI Agent / MCP | ✗ | ✗ |
| Team Collaboration | ✓ | ✓ |
| Use Case | General-purpose open-source relational database and extension hub | Graph database for knowledge graphs, recommendations, and fraud networks |
Pros & cons
PostgreSQL
- Gold-standard open-source SQL engine
- Huge extension ecosystem (including vectors)
- Foundation for many modern BaaS platforms
- You assemble auth/storage yourself
- Ops complexity grows without a managed host
- Not a serverless product by itself
Neo4j
- Best-in-class graph model and Cypher
- Great for knowledge graphs and recommendations
- Aura managed option plus self-host
- Not a drop-in SQL/RDBMS replacement
- Graph modeling mindset required
- Cost can rise for large Aura workloads
Dimension scores
Editorial 0–10 scores across shared dimensions — higher is better for that axis.
| Dimension | PostgreSQL | Neo4j |
|---|---|---|
| Capability | 9.2 | 8.5 |
| Privacy | 9.5 | 8.0 |
| Value | 9.5 | 7.5 |
| Depth | 9.5 | 9.0 |
| Ecosystem | 9.5 | 8.5 |
| DX | 8.0 | 8.0 |
- PostgreSQL
- Neo4j
FAQ
Is PostgreSQL better than Neo4j? (2026)
It depends on workflow. PostgreSQL emphasizes advanced open-source relational database with rich sql, extensions, and reliability. Neo4j emphasizes leading graph database for connected data, cypher queries, and knowledge graphs. Use the feature checklist above for your stack.
Which use cases fit PostgreSQL vs Neo4j?
- PostgreSQL: General-purpose open-source relational database and extension hub
- Neo4j: Graph database for knowledge graphs, recommendations, and fraud networks
What are the main differences between PostgreSQL and Neo4j?
- ACID: PostgreSQL (Full ACID compliance) vs Neo4j (Full ACID graph transactions)
- Index Support: PostgreSQL (B-tree, Hash, GiST, GIN, BRIN, and extension indexes (e.g. vectors)) vs Neo4j (Range, text, point, full-text, and vector indexes)
- Concurrency: PostgreSQL (Excellent MVCC for mixed read/write workloads) vs Neo4j (Strong for graph queries; clustering on Enterprise/Aura)
- Scalability: PostgreSQL (Vertical scale + replicas; sharding via extensions/ops) vs Neo4j (Causal clustering / Aura scale for connected data)
- SQL Support: PostgreSQL (yes) vs Neo4j (no)
How do PostgreSQL and Neo4j compare on pricing?
PostgreSQL pricing overview:
- Has a free tier
- Pricing model: open source
- Starting from ~$0/mo
- Plan Open Source: Free
- Plan Managed clouds: Vendor pricing
Neo4j pricing overview:
- Has a free tier
- Pricing model: freemium
- Starting from ~$0/mo
- Plan Community / Aura Free: Free
- Plan Aura Professional: Usage-based
- Plan Enterprise: Custom
Always verify current prices on the vendor site before buying.
Do PostgreSQL and Neo4j offer a free tier?
- PostgreSQL: Has a free tier
- Neo4j: Has a free tier
Are PostgreSQL and Neo4j open source?
- PostgreSQL: yes
- Neo4j: yes
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Related alternatives
Disclaimer:Not Financial or Investment Advice, Educational/Dev Tool Comparison Only. Information may change; always verify pricing on the vendor site before purchasing.