
RAGFlow
Open-source RAG engine based on deep document understanding with citation-backed responses. RAGFlow extracts tables, images, and structured data from complex documents, providing truthful question-answering with well-founded citations.
About this tool
Overview
RAGFlow is an open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG capabilities with Agent functionality. It offers a streamlined RAG workflow for deep document understanding and citation-backed responses.
Key Features
- Deep Document Understanding: Advanced parsing of complex document formats
- Multi-Format Support: Processes PDFs, Word docs, CSVs, Excel, PowerPoint, and more
- Table & Image Extraction: Intelligently extracts structured data and visual elements
- Citation-Backed Responses: Every answer includes references to source documents
- Advanced Chunking: Employs sophisticated chunking strategies for optimal retrieval
- Knowledge Base Management: Organizes parsed data for efficient search and retrieval
- Fused Re-ranking: Combines multiple recall strategies with re-ranking for accuracy
- Agent Capabilities: Integrates agentic workflows with RAG pipelines
How It Works
1. Document Processing
- Parse uploaded files using structure recognition models
- Extract tables, images, and metadata
- Break documents into optimally-sized chunks
2. Knowledge Base Creation
- Convert chunks into vector embeddings
- Store in knowledge base with advanced indexing
- Maintain document structure and citations
3. Query Processing
- Receive user query and convert to embeddings
- Search knowledge base using hybrid retrieval
- Apply fused re-ranking to prioritize results
- Generate response with LLM and citations
Applications
- Customer Support: Citation-backed chatbots with accurate responses
- Research & Education: Academic research assistants with source attribution
- Financial Analysis: Document-grounded financial insights
- Healthcare: Medical decision support with evidence-based answers
- Legal Tech: Contract analysis with precise citations
- Enterprise Search: Internal knowledge bases with traceable answers
Integration
RAGFlow integrates with:
- Major LLM providers (OpenAI, Anthropic, etc.)
- Popular vector databases
- Document management systems
- Custom embedding models
Pricing
Free and open-source with self-hosting options.
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Information
Websiteragflow.io
PublishedMar 11, 2026
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