Tools

Qdrant

Qdrant is a high-performance, open-source vector database and similarity-search engine written in Rust, built for storing and searching embeddings at massive scale for RAG and AI applications.

github.com/qdrant/qdrantFreemium29d ago

Weaviate

Weaviate is an open-source vector database that combines vector and structured (hybrid) search with cloud-native scalability, storing both objects and their vectors for retrieval and RAG.

github.com/weaviate/weaviateFreemium29d ago

Pinecone

Pinecone is a fully-managed, serverless vector database that lets developers store and query embeddings at scale without running infrastructure — a common production retrieval layer for RAG.

pinecone.ioFreemium29d ago

Chroma

Chroma is an open-source AI-native search and retrieval database designed to be the easiest way to add embeddings-based retrieval to an app, popular as the default vector store in LLM prototypes.

github.com/chroma-core/chromaFreemium29d ago

pgvector

pgvector is an open-source Postgres extension that adds vector similarity search to a database you already run — store embeddings in a column and query them with SQL for RAG.

github.com/pgvector/pgvectorOpen Source29d ago

LightRAG

Simple, fast retrieval-augmented generation system from HKUDS that combines vector search and graph-based knowledge representation. EMNLP 2025.

https://github.com/hkuds/lightragOpen Source2mo ago

RuVector

rUv's high-performance, real-time, self-learning vector graph memory database written in Rust — designed for agentic AI memory at scale.

github.com/ruvnet/ruvectorOpen Source2mo ago

RAG Anything

An all-in-one, multimodal retrieval-augmented-generation framework that ingests text, images, tables, and equations from documents into a single pipeline, letting agents query across mixed-media knowledge bases.

github.com/hkuds/rag-anything2mo ago

VisRAG

Parsing-free RAG pipeline backed by vision-language models — index PDFs and slides as images instead of text.

https://github.com/openbmb/visragOpen Source2mo ago

agentdb

Vector memory that gets smarter every time your agent uses it — feedback-aware retrieval that learns which results actually helped.

github.com/ruvnet/agentdbOpen Source2mo ago

GraphRAG

Microsoft's modular graph-based retrieval-augmented generation system, building knowledge graphs from documents for richer LLM Q&A.

https://github.com/microsoft/graphragOpen Source2mo ago

Ragas

Ragas is an open-source evaluation framework specialized for RAG pipelines, scoring retrieval and generation with metrics like faithfulness, answer relevancy, and context precision.

github.com/explodinggradients/ragasOpen Source29d ago

UltraRAG

OpenBMB's low-code MCP framework for building complex RAG pipelines — drag-and-drop retrieval, rerank, and generation components.

https://github.com/openbmb/ultraragOpen Source2mo ago

PageIndex

A vectorless, reasoning-based RAG system that builds hierarchical tree indexes from documents and uses LLM reasoning for context-aware retrieval. Eliminates the need for vector databases and chunking while achieving superior accuracy on professional documents.

github.com/vectifyai/pageindexOpen Source2mo ago

MongoDB RAG Agent

Hybrid RAG AI agent built with MongoDB, Pydantic AI, and Docling — combines semantic and text search with reciprocal rank fusion.

https://github.com/coleam00/MongoDB-RAG-AgentOpen Source2mo ago

Knowledge Graph Hybrid RAG

Hybrid RAG system on Neo4j with LangChain and LangGraph — combines SBERT embeddings, graph traversal, and BM25 over 61K papers.

https://github.com/safishamsi/knowledge-graph-based-hybrid-rag-systemOpen Source2mo ago

RAGEval

Benchmark and evaluation toolkit for retrieval-augmented generation pipelines — measure how well your RAG actually answers questions.

https://github.com/OpenBMB/RAGEvalOpen Source2mo ago

VideoRAG

HKUDS's RAG system for video — chat with hours of footage, ask questions, and get cited timestamps and clips back.

https://github.com/hkuds/videoragOpen Source2mo ago

TurboVec

A fast vector index built on TurboQuant, written in Rust with Python bindings.

github.com/ryancodrai/turbovec1mo ago

Human-in-the-Loop RAG Agent

RAG AI agent with realtime source validation (human in the loop), built with CopilotKit and Pydantic AI.

https://github.com/coleam00/human-in-the-loop-rag-agentOpen Source2mo ago

RVM

rUv's virtual machine built for the agentic age, in Rust — a secure, deterministic runtime for executing AI-generated code with isolation.

github.com/ruvnet/rvmOpen Source2mo ago

ConDB

KV-Cache native context database for long-context LLM agents and RAG.

https://github.com/vectifyai/condbOpen Source2mo ago

turbopuffer

turbopuffer is a vector and full-text search database built directly on object storage (like S3), offering sub-10ms query latencies while being roughly 10x cheaper than traditional in-memory vector databases. It supports hybrid vector plus BM25 full-text search with metadata filtering, and is used in production by companies like Cursor, Notion, Anthropic, and Linear at scales exceeding 4 trillion documents and 10 million writes per second.

turbopuffer.com3d ago

GitHub Issue Triager

AI-powered GitHub issue triage dashboard on Next.js 15, Neon Postgres, and pgvector that classifies, embeds, and plans implementation for every issue in a repo.

https://github.com/coleam00/githubissuetriagerOpen Source2mo ago

OpenAI Knowledge Retrieval Starter

Open-source starter kit from OpenAI for building knowledge retrieval (RAG) systems on top of the OpenAI API.

https://github.com/openai/openai-knowledge-retrievalOpen Source2mo ago

Vectr

Free, open-source template for building natural language image search on the AI Cloud.

https://github.com/vercel-labs/vectrOpen Source2mo ago

Semantic Image Search

Search images by what they show, not just filenames — reference build using embeddings and the Vercel AI SDK.

https://github.com/vercel-labs/semantic-image-searchOpen Source2mo ago

FACT

rUv's Fast Augmented Context Tools — lean retrieval pattern that skips vector search by caching static tokens in Claude Sonnet 4 and fetching live facts on demand.

github.com/ruvnet/factOpen Source2mo ago

Dynamous AI Coach

RAG AI agent that coaches users using Cole's content as its knowledge base.

https://github.com/coleam00/dynamous-ai-coachOpen Source2mo ago

Doxie

A RAG and LLM information retrieval tool for querying your own document collections.

https://github.com/badlogic/doxieOpen Source2mo ago