Directory
RAG
Reviewed resources in RAG. 540 resources listed.
ai·rete·rag
ai-rete-rag.comA platform that pairs a Rete rule engine with retrieval-augmented generation, so deterministic rules decide an outcome and grounded retrieval explains the decision in plain language.
Xtriever
github.comA hybrid retrieval engine for retrieval-augmented generation, written in Rust to run on-device on a phone or a laptop, combining lexical BM25 search, dense embedding search, reciprocal-rank fusion and cross-encoder re-ranking with no server.
FileFlux
github.comA .NET library that turns PDF, DOCX, HWP and other documents into optimized chunks for RAG systems, through a five-stage pipeline built on high-performance Rust FFI readers.
A hands-on, notebook-first repository that builds six retrieval-augmented-generation architectures step by step with LangChain and LangGraph, from a simple retrieve-then-generate pipeline up to self-correcting, agentic and multimodal systems.
Jina
tryagi.github.ioA fully generated C# SDK for the Jina API, covering embeddings, reranking and search, with Microsoft.Extensions.AI integration and support for .NET Framework, .NET Standard and modern .NET features such as trimming and NativeAOT.
Fast Knowledge
github.comA self-hosted, Java-based knowledge base for small and mid-sized organizations, turning internal documents into a searchable, question-answerable and audit-exportable knowledge asset with hybrid retrieval and Docker deployment.
RE-call
giulioder.github.ioAgent memory built on a developer's own PostgreSQL and pgvector, where every retrieved result carries a verdict, a confidence score and provenance, and a query that cannot clear a calibrated trust threshold is refused instead of answered from the nearest match.
RAG PDF Chat
pdf-chat-scrapper.vercel.appA full-stack, educational retrieval-augmented-generation demo: upload a PDF, the FastAPI backend chunks and embeds it into a per-session FAISS index, and a React app streams LLM answers grounded in the retrieved passages.
Gebo.ai
gebo.aiAn open-source, vendor-agnostic enterprise AI and retrieval-augmented-generation platform that connects to widely used enterprise systems and a wide range of cloud or on-premise model providers.
Vyral
openvyral.comAn open-source, local-first contract layer and runtime for applications that need canonical data storage, retrieval and RAG, and durable execution, without locking application code to one cloud provider.
GrooveSeek
github.comAn MCP server for hybrid semantic and full-text search over a Markdown knowledge base, with optional support for plain text, PDF, Office documents and source code.
FluxIndex
github.comA .NET 10 RAG library for building semantic search and retrieval systems, combining vector and keyword hybrid search with pluggable storage backends.
Wild-OmniDocBench
github.comA 1,350-image benchmark for evaluating document-parsing robustness against real-world captured pages, derived from OmniDocBench with physical printing, deformation and photography.
KB Arena
github.comRuns the same document corpus and question set through 19 retrieval architectures and reports citable, statistically tested evidence for which one fits a given dataset best.
RAG Engine
rag.int2t.comA full-stack retrieval-augmented-generation template covering authentication, knowledge-base management, document parsing and vectorization, hybrid retrieval, streaming chat and evaluation in one repository.
Docling Document Parsing on Docker
github.comA Docker image for a self-hosted document-parsing server, powered by IBM Docling, that converts PDF, DOCX, PPTX, HTML and more to Markdown or JSON with optional GPU acceleration.
RECAP
github.comA Chrome extension paired with a local Python backend that indexes the pages a user actually reads and lets them search their browsing history in plain English using local retrieval-augmented generation.
rag-doc-qa
github.comA reference implementation of production-style retrieval-augmented generation for document question answering, combining hybrid retrieval, citation grounding and a streaming chat API.
Cognik
github.comA self-hosted knowledge base where an AI agent not only answers questions over retrieval-augmented generation but also searches the web, fetches pages and writes newly found knowledge back into the index automatically.
CausalGraph AI
casualgraphai.vercel.appAn open-source application that turns long-form ESG corporate disclosures into searchable, cited evidence through retrieval-augmented generation and an optional knowledge graph.
AskMyDocs
askmydocs.padosoft.comA self-hostable AI hub for enterprise knowledge that combines hybrid retrieval-augmented generation, a typed knowledge graph and agentic tool use behind a Laravel platform, positioned as an on-premises alternative to hosted knowledge assistants.
Spectrum
bytespectrum.ccA local-first CLI that packs a codebase into a compact, lossless, searchable archive that can be queried and restored byte-for-byte, for agent memory and local RAG.
ZErio AI
zerio-ai.onrender.comA full-stack web chat application that lets users switch between five language models, ask questions grounded in uploaded documents through retrieval-augmented generation, search the web in real time, and analyze images, with streaming responses.
VelociRAG
github.comA local retrieval-augmented-generation engine that fuses vector similarity, BM25 keyword search, knowledge-graph traversal and metadata filtering, running entirely on ONNX Runtime with no PyTorch or GPU required.