RAG & Knowledge Base Toolkit
Everything you need to build retrieval-augmented apps: frameworks, vector databases, and orchestration.
GuideIntermediate
4.5
NEWLlamaIndex Framework Tutorial
Learn to build RAG applications and knowledge base systems with LlamaIndex.
LlamaIndexRAGKnowledge Base
LlamaIndexUpdated 2026-06-26
Open SourceIntermediate
4.5
NEWHaystack RAG Framework
An open-source LLM application framework from deepset, focused on retrieval-augmented generation (RAG) and building production-grade Q&A systems.
HaystackRAGRetrieval
deepsetUpdated 2026-06-22
Open SourceIntermediate
4.7
NEWQdrant Vector Database
A high-performance open-source vector database and similarity search engine for powering RAG and recommendation systems.
QdrantVector DatabaseRAG
QdrantUpdated 2026-06-20
Open SourceBeginner
4.7
NEWDify LLM App Development Platform
An open-source LLM application development platform offering visual orchestration, a RAG engine, and Agent capabilities for building AI apps quickly.
DifyLLMOpsApp Development
DifyUpdated 2026-07-09
GuideIntermediate
4.6
NEWLangChain Framework Tutorial
Dive into the LangChain framework and master the core concepts of LLM application development, including Chains, Agents, and Memory.
LangChainLLMFramework
AI Resource HubUpdated 2026-06-24