Self-host Personal External Brain Knowledge Graph
Local-first personal knowledge graph with evidence recall
- Stars
- 199
- Ports
- 8000 (API server (FastAPI)), 3000 (Web workbench (Next.js))
What is Personal External Brain Knowledge Graph?
This local-first application constructs a personal knowledge graph from varied inputs such as notes, web pages, Markdown files, PDFs, audio recordings, and video. It pulls out claims with exact source references, filters ingestion by topic relevance, and delivers topic-isolated recall where every retrieved fact gets a confidence score. The system deliberately declines to answer when evidence is lacking, making refusal rate a quality measure. It includes decision tracking with outcome logging, learning loops with spaced repetition and misconception tracking, and a three-panel workbench interface. The stack uses Kuzu for graph storage, LanceDB for vector search, a FastAPI backend, and a Next.js/React frontend. You can deploy via Docker Compose or locally with Node.js 18+ and Python 3.11/3.12. The project is in early alpha with a strict design constitution that prioritizes evidence-backed answers over fluent but ungrounded generation.
Should you self-host Personal External Brain Knowledge Graph?
Personal External Brain Knowledge Graph scores 38/100 on selfhost.directory (how scoring works) and ranks #35 of 42 in Knowledge Management. It has 199 GitHub stars.
There was no stable release in the past 12 months, so check the repository's recent activity before you rely on it.
Setup is advanced: plan for several services and some ongoing maintenance. It is MIT-licensed and written mostly in Python.
Its closest alternative on selfhost.directory is Project N.O.M.A.D. (85/100, 41 133 stars). It scores higher overall, so compare the two before you pick. See Personal External Brain Knowledge Graph vs Project N.O.M.A.D. side by side.
Features
- Decision tracking
- Learning loops with spaced repetition
- Local-first, no login
- Multi-format ingestion
- OpenAI-compatible LLM/embedding endpoints
- Refusal when ungrounded
- Single-question scoring
- Topic-isolated recall
Personal External Brain Knowledge Graph README
More in Knowledge Management
PetrichorPetrichor is an open-source, self-hosted platform turning Markdown into semantic wikis with agentic RAG for traceable, evidence-backed answers.
PharosSelf-hosted, open-source RAG system with multi-format document ingestion, hybrid retrieval, enterprise ACL, and dual HTTP + MCP exits for team knowledge bases.
PineDocsPineDocs is a self-hosted, open-source file viewer for Markdown, HTML, code, images, PDFs, and media — no database needed. Runs via Docker or PHP with dark mode.
plan42Collavre is a self-hosted, open-source workspace where every block is a document, task, discussion, and AI agent context in one. Built on Rails with MCP.
PlanePlane is a self-hosted open-source project management platform combining work items, cycles, wiki docs, and AI agents as an alternative to Jira, Linear, and ClickUp.- PmWikiPmWiki is a wiki-based content-management system (CMS) for collaborative creation and maintenance of websites. It allows users to create and edit pages using simple markup rules without requiring knowledge of HTML or CSS.
PoznoteA free, open-source, self-hosted notes app offering rich text, Markdown, tasks, boards, graphs, an AI chat, and an MCP server — replacing Notion on your own server.
Project N.O.M.A.D.Open-source, self-hosted offline knowledge and education server: Wikipedia, maps, Khan Academy courses and optional local AI, all managed from one Docker dashboard.
Pydio CellsFuture-proof content collaboration platform
QCueQCue is a self-hosted, open-source capture-first second brain that turns thoughts into a living Markdown wiki using your own LLM keys.
QHub-WikiSelf-hosted knowledge base for SMBs combining Wiki.js, Qdrant vector search, and a Chrome extension for AI answers, deployed via Ansible or Docker Compose.
qpixelOpen-source, self-hosted Q&A and community forum in Rails: one installation hosts many communities, each with categories, post types, voting and activity-based abilities.
0 comments