Features
A knowledge base that doesn't rot.
Wikis fail because they depend on discipline. Noesium is built so your team's knowledge stays portable, permissioned, and searchable — by humans and by AI.
Markdown vault
Plain .md files with YAML frontmatter are the source of truth. Your knowledge stays readable and portable — no lock-in, ever.
Role-based access
Users, roles, and groups down to the single document. Every search result and every AI answer respects who's asking.
AI over your knowledge
Chat with your vault. Model-agnostic by design: plug in the best LLM available at any moment, swap it when a better one ships.
Runs fully offline
No telemetry, no cloud, no outbound calls of its own — the only egress is the LLM endpoint you configure, which can run on your own hardware. Air-gapped by design: your data never asks permission to stay home.
Version history
Every change tracked with author and timestamp. Diff any two versions, see who changed what, restore in one click.
Docs that follow your code soon
CI/CD integration that keeps docs aligned with your code: analysis on every PR, auto-updated pages on merge, ADRs captured before knowledge evaporates.
The bigger picture
Why own your knowledge at all?
Cognitive science says we're built to offload memory into our tools. But today's AI memory lives on someone else's servers: it doesn't move with you, and on consumer plans it trains their models by default. We wrote up the research, the problem, and how Noesium answers it — with every claim sourced.
Read Why Noesium →FAQ
Frequently asked questions
The short answers. Everything here is also in llms.txt for the machines.
How is Noesium different from Confluence or Notion?
Noesium is fully self-hosted and your knowledge lives in plain Markdown files with YAML frontmatter — no proprietary format, no cloud dependency, no lock-in. It ships as a single Docker container, makes no outbound calls of its own, and adds role-based permissions, full version history, and AI chat on top of your own infrastructure.
Why not just point an AI coding tool at a folder of Markdown files?
You can — and because the vault is plain Markdown, tools like Kiro, Cursor, or Claude Code can read it too. But an agentic IDE treats Markdown as scaffolding for generating code; chatting with files is not building a memory. Noesium adds what an IDE has no reason to have: a curated ingest pipeline that proposes concepts and weaves updates into existing notes, per-document permissions, full version history, and a web app anyone in the org can use — not just developers, and with no vendor account required.
Does Noesium work in air-gapped or offline environments?
Yes. Noesium runs as a single container that makes no outbound calls of its own and works in fully disconnected environments. The only egress is the LLM endpoint you choose to configure — point it at a locally hosted model and nothing ever leaves your infrastructure.
What format is my data stored in? Is there lock-in?
The source of truth is a vault of plain .md files with YAML frontmatter. Your knowledge stays readable and portable with any text editor — you can leave at any time and take everything with you.
Which AI models does Noesium support?
Noesium is model-agnostic: you can plug in any LLM provider — cloud APIs or locally hosted models — and swap it whenever a better one ships. Every AI answer respects the asking user's document permissions.
How much does Noesium cost?
Noesium is free for individuals and small teams, forever. Larger organizations will need a commercial license. Public release is upcoming — join the newsletter on noesium.app to be notified at launch.
How do I install Noesium?
One command: docker compose up -d. It is a single container on your own infrastructure — no cloud account, no phone-home. The download will be available at launch.