Kwipu

Ask questions across your Markdown notes using a fully local Graph RAG engine. Built for Obsidian vaults, works with any folder of Markdown files. Extracts entity-relation triples from wikilinks & YAML frontmatter, retrieves answers via hybrid search (vector + BM25 + temporal). Multilingual. No cloud. Runs on Ollama. Maintained by benmaster82 on GitHub, where it has earned 266 stars from the community.

It's actively developed around llm, md, natural-language, and is a solid reference for anyone building with these tools.