The best LightRAG alternatives

Langchain-Chatchat

chatchat-space/Langchain-Chatchat

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Llama) RAG and Agent app with langchain

Choose Langchain-Chatchat if…

• Apache License 2.0 suits your use better than MIT License
• you specifically need chatbot or chatchat

Shares gpt, llm, rag, retrieval-augmented-generation with LightRAG.

graphrag

microsoft/graphrag

A modular graph-based Retrieval-Augmented Generation (RAG) system

Choose graphrag if…

• you specifically need gpt-4 or gpt4

Shares gpt, graphrag, llm, rag with LightRAG.

TaskingAI

TaskingAI/TaskingAI

The open source platform for AI-native application development.

Choose TaskingAI if…

• Apache License 2.0 suits your use better than MIT License
• you prefer a smaller, narrower project to a large one
• you specifically need agent or ai

Shares gpt, llm, rag, retrieval-augmented-generation with LightRAG.

graphify

Graphify-Labs/graphify

Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.

Choose graphify if…

• Apache License 2.0 suits your use better than MIT License
• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (141.6k)
• you specifically need ai-agents or antigravity

Shares graphrag, knowledge-graph, llm, rag with LightRAG.

haystack

deepset-ai/haystack

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.

Choose haystack if…

• Apache License 2.0 suits your use better than MIT License
• you specifically need agent-framework or agentic-ai

Shares genai, large-language-models, llm, rag with LightRAG.

code-graph-rag

vitali87/code-graph-rag

The ultimate RAG for your monorepo. Query, understand, and edit multi-language codebases with the power of AI and knowledge graphs

Choose code-graph-rag if…

• you want something your agent can install directly rather than a library to wire up yourself
• you prefer a smaller, narrower project to a large one
• you specifically need ai or ast

Shares knowledge-graph, llm, rag, retrieval-augmented-generation with LightRAG.

PageIndex

VectifyAI/PageIndex

📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG

Choose PageIndex if…

• you specifically need agentic-ai or agents

Shares llm, rag, retrieval-augmented-generation with LightRAG.

mem0

mem0ai/mem0

The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

Choose mem0 if…

• Apache License 2.0 suits your use better than MIT License
• you want the more widely starred option (68.3k)
• you specifically need agentic-memory or agentic-memory-system

Shares genai, llm, rag with LightRAG.

R2R

SciPhi-AI/R2R

SoTA production-ready AI retrieval system. Agentic Retrieval-Augmented Generation (RAG) with a RESTful API.

Choose R2R if…

• you prefer a smaller, narrower project to a large one
• you specifically need artificial-intelligence or python

Shares large-language-models, rag, retrieval-augmented-generation with LightRAG.

ai-agents-from-zero

didilili/ai-agents-from-zero

🚀 2026 最系统的 AI Agent 速成指南｜智能体实战教程 · 完整学习路径 + 实战项目 + 面试题库 · 对标大模型应用开发工程师岗位 · 覆盖LangChain / LangGraph / Coze / Dify / MCP / skills / LLM / RAG / 提示词 · 企业级部署与微调 · 从0到企业级落地 + 从学习到上线项目 + 面试准备一体化

Choose ai-agents-from-zero if…

• you want something your agent can install directly rather than a library to wire up yourself
• you prefer a smaller, narrower project to a large one
• you specifically need agent or agent-framework

Shares gpt, llm, rag with LightRAG.

llm-wiki-agent

SamurAIGPT/llm-wiki-agent

A personal knowledge base that builds and maintains itself. Drop in sources — Claude (or Codex/Gemini) reads them, extracts knowledge, and maintains a persistent interlinked wiki. Works with Claude Code, Codex, OpenCode, Gemini CLI. No API key needed.

Choose llm-wiki-agent if…

• you prefer a smaller, narrower project to a large one
• you specifically need ai-agent or ai-tools

Shares knowledge-graph, llm, rag with LightRAG.

llm-app

pathwaycom/llm-app

Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data. 🐳Docker-friendly.⚡Always in sync with Sharepoint, Google Drive, S3, Kafka, PostgreSQL, real-time data APIs, and more.

Choose llm-app if…

• you would rather work in Jupyter Notebook than Python
• you specifically need chatbot or hugging-face

Shares llm, rag, retrieval-augmented-generation with LightRAG.