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Shital Infotech
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Consumer · Knowledge Management · Privacy-firstLive

UNIUN — decentralized second brain

An offline-first knowledge platform with fully on-device AI — your data never leaves your device.

UNIUN — decentralized second brain
UNIUN landing page

Note-taking, a private social network, and on-device AI grounded in your own notes — built on an open, self-hostable, end-to-end-encrypted stack.

The problem

Knowledge tools and social feeds harvest your data and hand your attention to an algorithm. UNIUN keeps notes, network and AI on your own device, on an open network you can self-host.

How we built it

Three pillars — Create (notes as a knowledge graph), Share & Reflect (a chronological, non-algorithmic feed with E2E-encrypted DMs), and Transform (on-device AI chat and note-fusion using lightweight local models).

What it does

  • Notes-as-graph canvas with curated subsets and drafts
  • Chronological feed — no algorithmic curation, ever
  • MLS end-to-end encryption for private channels and DMs
  • On-device AI chat grounded in your own notes (Qwen3, DeepSeek R1, Gemma)
  • User-controlled keypair identity; open-source, self-hostable relay