Concordance
A local-first memory vault that answers from what you saved
Shipped
Concordance is a local-first AI memory vault. A Chrome extension captures links, pages, videos, selected text, and notes; a local worker summarizes, tags, and categorizes them; search and grounded chat answer only from what you saved, with every citation linked to its source.
At a glance
- Role
- Solo: design, build, release
- Scope
- Chrome extension capture, summarize / tag / categorize worker, hybrid search, grounded cited chat
- Constraints
- Local-first and single-user: no cloud account, no keys required; AI providers strictly opt-in
The problem
People who save a lot can’t find it later. Bookmarks rot, notes scatter across apps, and asking a chatbot about your own reading gets you a confident answer with no sources.
The approach
Everything stays on your machine. A zero-dependency Node API on the built-in SQLite, a Python worker that leases jobs from the same database, and hybrid retrieval that fuses dense and keyword results. Chat answers only from retrieved chunks, checks every citation, and abstains when the evidence is thin.
Stack
- Node 22 (node:sqlite)
- SQLite FTS
- Python
- Chrome MV3
- Qdrant (optional)
- Ollama / OpenAI / Gemini (opt-in)
Status
v1.0.0 · runs locally by design
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