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123 tools · 10 stacks
GitHub

AI tools are all over the place. This is the full landscape — 123 tools across 12 categories, mapped and connected. Ready to narrow it down? Build your stack →

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
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These tools often paired
LangChain
vs
LlamaIndex

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 LlamaIndex when…

  • •You're building RAG or knowledge base apps
  • •Structured data querying over documents is your focus
  • •You need powerful index and retrieval primitives
Field
LangChain
LlamaIndex
Category
Pipelines & RAG
Pipelines & RAG
Type
OSS
OSS
Free Tier
✓ Yes
✓ Yes
Plans
—
—
Stars
⭐ 93,000
⭐ 37,000

LangChain

Most widely used framework for building LLM applications. Chains, agents, RAG pipelines, and deep integrations with 300+ tools.

LlamaIndex

Framework specialized in data ingestion, indexing, and retrieval for LLM applications. The go-to for complex RAG pipelines.

LangChain Website ↗GitHub ↗
LlamaIndex Website ↗GitHub ↗

Shared Connections (12)

LangGraphQdrantChromaPineconeWeaviatepgvectorLiteLLMLangfuseRAGASOpenAI APIAnthropic APIHaystack

Only LangChain (12)

OpenHandsCrewAIAutoGenSemantic KernelLangSmithLlamaIndexDSPyFlowise

Only LlamaIndex (4)

CursorLangChainOllamavLLM
See full comparison in Explore →