These tools integrates with
LangChainvspgvector
The leading LLM app framework versus PostgreSQL extension for vector similarity search
Compare interactively in Explore →Choose LangChain when…
- •You want a broad, flexible LLM orchestration toolkit
- •You need integrations with many tools and data sources
- •You're prototyping or exploring LLM app patterns
Choose pgvector when…
- •You're already on PostgreSQL
- •You want vector search without a separate database
- •SQL queries combined with embedding search are needed
Side-by-side comparison
Field
LangChain
pgvector
Category
Pipelines & RAG
LLM Infrastructure
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
—
—
GitHub Stars
⭐ 93,000
⭐ 13,000
LangChain
Most widely used framework for building LLM applications. Chains, agents, RAG pipelines, and deep integrations with 300+ tools.
Shared Connections4 tools both integrate with
Only LangChain (20)
OpenHandsCrewAIAutoGenSemantic KernelLangSmithChromaWeaviatepgvectorLiteLLMLangfuse
Only pgvector (2)
LangChainMilvus
Explore the full AI landscape
See how LangChain and pgvector fit into the bigger picture — 123 tools, 304 relationships, all mapped.