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LocalThink Format (LTF)
An open standard for saving human-AI conversations as portable, readable, long-lived memory.
Learn moreProtecting Personal Thinking.
We believe personal thinking should remain personal, even in an age of intelligent machines.
Why This Matters
For the first time in history, part of human thinking is happening inside intelligent machines.
Every conversation with AI leaves behind memory, reasoning, and knowledge.
Yet most of that thinking remains trapped inside closed platforms.
If personal thinking becomes dependent on platforms, people may lose ownership of an increasingly important part of themselves.
We believe personal thinking should remain personal.
Our Mission
Protecting Personal Thinking.
We build standards, tools, and infrastructure that help people own, preserve, and extend their thinking in the age of AI.
What We Are Building
Standard, capture, and runtime: the first pieces of a practical system for personal AI memory.
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LTF Builder
A Chrome Web Store extension for exporting ChatGPT and Claude conversations as clean LTF files.
Learn more03
LocalThink App
A local runtime app for searching, organizing, and continuing your AI memory on your own device.
Latest Updates
Notes, essays, release logs, and founder letters from the LocalThink project.
6/30/2026, 6:21:18 AM
LocalThink has released LTF Builder on the Chrome Web Store.
LTF Builder is a Chrome extension that helps users export ChatGPT conversations as LocalThink Format (.ltf.md) files.
6/25/2026, 4:54:18 AM
Why We Started LocalThink
As AI becomes part of human thinking, we believe the memory, reasoning, and knowledge created between humans and machines should belong to the people who create it.