Best Open Source rag Libraries
A curated list of the most popular GitHub repositories tagged with rag. Select any project to visualize its architecture and dive into the codebase using GitPulse's AI engine.
#1vespa-engine/vespa
AI + Data, online. https://vespa.ai
#2onestardao/WFGY
WFGY is heading toward WFGY 5.0 Polaris Protocol, a major open-source release for AI reasoning, RAG, agents, and real-world workflows. Includes Problem Map, Global Debug Card, WFGY 4.0, and the CFV Easter Egg.
#3zilliztech/memsearch
A persistent, unified memory layer for all your AI agents (e.g. Claude Code, Codex), backed by Markdown and Milvus.
#4vasu-devs/JustHireMe
Local-first AI job intelligence workbench for scraping roles, ranking fit, and generating tailored application materials.
#5403errors/repomind
An open-source, AI-powered application using Agentic CAG to chat with any public GitHub repository or developer profile, offering deep code analysis, visual architecture maps and security audits