pi-tree

Local-first AI reading companion with branching, tree-structured conversations

Desktopfree

pi-tree is a free, open-source, local-first AI reading companion for books, research papers, RSS feeds, and YouTube videos, structuring conversations as a navigable tree instead of a linear chat log. It runs entirely on your own machine, working with cloud AI APIs or fully offline via Ollama, and is positioned as a self-hosted alternative to NotebookLM.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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