Your notes folder becomes the AI’s memory: your goals, your projects, the people you work with. Ask anything, and it answers knowing you, without explaining yourself again.
Goals, projects, people, decisions: plain notes the AI reads before it answers.
Claude, OpenAI, Gemini or DeepSeek, with your own key.
Markdown with links, graph view, templates and plugins.
Drafts, summaries, rewrites, translations, right in the note.
Drop a PDF or a picture into a note and ask about it.
Writing never needs the internet. Only the AI chat does.
Install YourBrain2, create a note about yourself: who you are, what you work on. That note is the start of the memory.
Paste an API key from OpenAI, Anthropic, Google or DeepSeek into Settings. Set the two privacy options from our guide so your notes are not used for training.
Open the AI chat. It reads your folder first, then answers. Save the good answers as notes, and the memory grows.
Only the notes in the folders you allowed, plus your question. Private folders and the Secure Vault are never sent.
No. YourBrain2 reads and writes the same Markdown files; Obsidian is optional.
You pay your AI provider directly, usually cents per conversation. The $9 covers the app.
The price and the date are shown at checkout before the trial turns into a paid plan. Cancel any time; your notes stay yours.
30 days free, then $9 a month or $90 a year.