NDLedger turns your AI chat history into a searchable knowledge library. Upload transcripts from any AI assistant and we extract the topics, decisions, commitments, tasks, insights, and pivots automatically, so the work you do with AI accumulates into something you can come back to.

When you upload a transcript, Claude reads through it and identifies discrete topics and the insights tied to each one. Each insight is tagged by type (decision, commitment, insight, pivot, or task) and by personal/business context, then stored in your library and linked to the originating transcript.

Topics fall into six categories: Business & Monetisation, Go to Market, Legal & Compliance, Personal & Ideas, Product & Features, and Technical. Categories are assigned automatically during extraction and you can filter and explore by category in the mind map.

Yes. Your data lives in a row-level-secured Postgres database. Only your authenticated session can read or write your rows. We don't share, sell, or train models on your data.

Go to Settings → Danger Zone → Delete My Account. This permanently removes every transcript, topic, and insight tied to your account, plus the account itself. The action cannot be undone.