Cloudflare RAG alternatives for AI agents.

[EMNLP2025] "LightRAG: Simple and Fast Retrieval-Augmented Generation"

21 Lessons, Get Started Building with Generative AI

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

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

Free and Open Source, Distributed, RESTful Search Engine

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

high-performance graph database for real-time use cases

Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents instant retrieval and long-term memory.

Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust

🔎 Open source distributed and RESTful search engine.

Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.

Build your personal knowledge base with Trilium Notes

Apache Lucene open-source search software

🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.

A Simple and Universal Swarm Intelligence Engine, Predicting Anything. 简洁通用的群体智能引擎，预测万物

SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.