Shortlist by what you need
Start here if you know why you are leaving Neo4j.
Want the closest match?
QdrantMost similar to Neo4j in what it does, its category and its price.
Visit (opens Qdrant in a new tab)Need a free plan?
LangGraphHas a free plan, rated 4.4 out of 5.
Visit (opens LangGraph in a new tab)Want the lowest price?
Mem0From $19/mo, the lowest starting price here.
Visit (opens Mem0 in a new tab)Want the best rated?
ElasticRated 4.4 out of 5 in our review, against 4.5 for Neo4j.
Visit (opens Elastic in a new tab)
At a glance
Green means better than Neo4j, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Neo4jBaseline | 4.5 | Free | Yes | Graph database and knowledge-graph platform positioned as a knowledge layer for AI, with GraphRAG for grounded LLM answers, Aura Agent for building context-aware agents, vector search and MCP support. | |
| Qdrant | 4.3−0.2 | Free | Yes | Open-source vector database that raised a $50M Series B to power retrieval for AI agents | vs Neo4j |
 LanceDB | 4.2−0.3 | Free | Yes | Open-source vector database built on the Lance columnar format for multimodal AI search. | vs Neo4j |
| Elastic | 4.4−0.1 | Not listed | No | Search AI company behind Elasticsearch, with a vector database, a Search AI platform, Agent Builder for context-driven AI agents, and AI-driven analytics across search, observability and security. | vs Neo4j |
 Vectorize | 4.1−0.4 | Not listed | No | Agent memory that reflects on what it stored, recalling in under 100ms across sessions. | vs Neo4j |
 Marqo | 4.0−0.5 | Not listed | No | AI-native vector search platform that handles embedding generation, storage, and retrieval for ecommerce discovery. | vs Neo4j |
| LangGraph | 4.4−0.1 | Free | Yes | LangChain's own answer for stateful agents that can loop | vs Neo4j |
 Lettria | 3.9−0.6 | Not listed | No | Graph Context Layer platform from Lettria that turns enterprise documents and unstructured knowledge into ontology-powered graphs for grounded, traceable AI. | vs Neo4j |
| Mem0 | 4.2−0.3 | $19/mo | Yes | Open-source memory layer that lets AI agents retain and recall context across sessions. | vs Neo4j |
The alternatives in detail
In order of how closely each one matches Neo4j.
Qdrant
4.3Free
vs Neo4j−0.2
Open-source vector database that raised a $50M Series B to power retrieval for AI agents.
- Open-source vector database, free to self-host with full source access
- Qdrant Cloud managed service with a free tier and usage-based paid plans
- Purpose-built for semantic search, recommendations, and RAG pipelines
Open-source option gives full control and zero licensing cost for self-hosted deployments
Self-hosting still requires infrastructure expertise the managed tier is meant to remove
LanceDB
4.2Free
vs Neo4j−0.3
Open-source vector database built on the Lance columnar format for multimodal AI search.
- Embedded, serverless vector database with no separate server process required
- Native support for multimodal data: vectors, images, text, and documents in one table
- Lance columnar file format optimized for random-access AI workloads
Apache 2.0 open-source core with no licensing cost for self-hosting
Younger project than incumbents like Pinecone or Weaviate, with a smaller integration ecosystem
Elastic
4.4Not listed
vs Neo4j−0.1
Search AI company behind Elasticsearch, with a vector database, a Search AI platform, Agent Builder for context-driven AI agents, and AI-driven analytics across search, observability and security.
- Search AI platform for building intelligent search applications
- Vector database for storing and searching embeddings
- Agent Builder for context-driven AI agents
Free self-managed install and a 14-day cloud trial with no card
Cost depends on deployment model and usage, with no flat price shown
Vectorize
4.1Not listed
vs Neo4j−0.4
Agent memory that reflects on what it stored, recalling in under 100ms across sessions.
- Per-user memory persisting across sessions
- Recall in under 100 milliseconds
- Reflection layer consolidating observations into knowledge
Reflection stops memory degrading into an unusable pile
No published pricing
Marqo
4.0Not listed
vs Neo4j−0.5
AI-native vector search platform that handles embedding generation, storage, and retrieval for ecommerce discovery.
- Combined embedding generation, storage, and retrieval behind one API
- Multimodal search matching text queries against product images
- Personalization layer built into ranked search results
Single API removes the need to stitch together separate embedding and vector-store services
No published pricing makes cost comparison against competitors harder upfront
LangGraph
4.4Free
vs Neo4j−0.1
LangChain's own answer for stateful agents that can loop.
- Graph-based agent orchestration with support for cycles and loops
- Explicit state management across multi-step agent behavior
- Built by LangChain as a production-grade orchestration layer
Handles loops and retries that linear chain-based approaches can't
Lower-level abstraction means a steeper learning curve than higher-level frameworks
Lettria
3.9Not listed
vs Neo4j−0.6
Graph Context Layer platform from Lettria that turns enterprise documents and unstructured knowledge into ontology-powered graphs for grounded, traceable AI.
- Ontology-powered knowledge graphs built from a company's own documents
- Stated 30%+ accuracy improvement over vector-based RAG on complex knowledge
- Perseus generates production-ready ontologies from domain data in minutes
Traceability and auditability matter for AI used in regulated industries
No public pricing; every engagement starts with a demo or trial request
Mem0
4.2$19/mo
vs Neo4j−0.3
Open-source memory layer that lets AI agents retain and recall context across sessions.
- Selective memory extraction instead of full conversation-history storage
- Open-source core with a hosted cloud API option
- Cross-session personalization for AI assistants and agents
Open-source core gives developers a self-hosted option alongside the managed API
Selective-memory approach can miss context a full-window approach would have caught
FAQ
Questions people ask
Is Neo4j free?
Neo4j has a free plan.
What is the best free alternative to Neo4j?
LangGraph is the highest-rated alternative here with a free plan (4.4 out of 5). Other free options: Qdrant, LanceDB, Mem0.
What is the cheapest alternative to Neo4j?
Among paid plans, Mem0 has the lowest starting price (from $19/mo). If you need it free, start with LangGraph.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.