Skip to main content

Triangle Notes — Thinking, Organized For AI

A note taking app built around Groups, Topics, and Notes — and designed from day one to work with ChatGPT and other AI chat systems.

Works alongside the AI tools you already use

How Triangle Notes is organized

01.Start with a Group

Groups are the top level of Triangle Notes. Use them to separate the big areas of your life — a project, a team, a course, a client, a personal journal. Everything you capture lives inside a Group, so context never gets tangled.

One Group per project, team, or area of focus
Keep work, side projects, and personal notes cleanly separated
Share a Group with collaborators, or keep it private
Move Topics between Groups as your work evolves

02.Break it down into Topics

Inside each Group, Topics are the threads of thought you return to — a feature, a chapter, a meeting series, a research question. Topics give your notes structure without forcing you to build folders and tags.

Group related notes under a single Topic
Rename and reorder Topics as your thinking changes
Jump between Topics without losing your place
Pull a whole Topic into an AI chat as context in one click

03.Write Notes the way you think

Notes are where the actual writing happens. Capture a quick thought, paste in a transcript, outline an idea, or draft a long document. Notes are searchable across every Group and Topic, so nothing you write gets lost.

Fast, distraction-free writing
Full-text search across every Group and Topic
Link notes to each other to build a map of your thinking
Revision history so you never lose a draft

Built to work with ChatGPT and other AI chats

Triangle Notes is not a closed AI system. It is a notebook that plugs into the AI tools you already use. Select a Note, a Topic, or an entire Group and send it straight into a chat — or pull AI output back into your notes when you want to keep it.

Send context into ChatGPT in one click

Push a Note, a Topic, or a whole Group into ChatGPT as structured context. No more copying and pasting between tabs.

Works with Claude, Gemini, and other AI chats

Triangle Notes is designed to be AI-agnostic. Use it alongside whichever chat system you prefer — and switch between them without losing your context.

Save AI responses back into your notes

Capture the useful parts of an AI conversation directly into the right Topic, so your notebook stays the source of truth.

Keep your notebook portable

Your writing stays yours. Export any Group, Topic, or Note as plain text or markdown at any time.

Ready to think with AI, not around it?

Try Triangle Notes and bring structure to the notes you already hand to ChatGPT.