Open source
RAGFlow
Open source RAG engine with deep document parsing and agents
RAG FrameworksOpen RAG engine, deep parsing
Alternatives to LlamaIndex
12 tools like LlamaIndex, chosen by what they do. About LlamaIndex
Open source
Unstructured
Converts PDFs, scans and office files into data for AI
RAG FrameworksTurn documents into LLM data
Open source
Haystack
Open source framework for building search, RAG and agent pipelines
RAG FrameworksOpen framework for search, RAG
Open source
Cognee
Open source memory platform that gives AI agents persistent memory
RAG FrameworksMemory graph for AI agents
Open source
Instructor
Library for getting structured, validated data from LLM output
Agent FrameworksStructured outputs from LLMs
Open source
VoltAgent
TypeScript framework for AI agents with built-in observability
Agent FrameworksTypeScript AI agent framework
Open source
DSPy
Framework for programming LLM pipelines with typed signatures
Agent FrameworksProgram LLMs, not prompt them
Open source
Genkit
Open source toolkit from Google for building AI apps and agents
Agent FrameworksFull stack AI app framework
Freemium
Dify
Visual platform for building AI agents, workflows and RAG apps
WorkflowsBuild agents and workflows
Open source
Firecrawl
Web data API that turns websites into LLM-ready data for agents
Browser AgentsTurn websites into LLM data
Open source
Langfuse
Open source tracing and evals for LLM apps and AI agents
Observability and EvalsOpen source LLM observability
Freemium
Tavily
Web search and extraction API that gives AI agents clean results
Search and ResearchWeb search API for AI agents