Second Brain

SECOND BRAIN Offline

SETTINGS — AI

Paste your Anthropic API key to unlock real AI: smart tagging for ideas and reflections on diary entries. The key is stored only in this browser — it never appears in exports and is never sent anywhere except directly to Claude.

AI quality

SETTINGS — APPEARANCE

ASK YOUR BRAIN

Answers come only from your own notes

CAPTURE

Ctrl/Cmd + Enter

0 NOTES

DIARY

Ctrl/Cmd + Enter

Write a few more entries first

TIMELINE

SAVE A CLIP

SET A GOAL

TARGET

TODO

THE WEB idea diary clip — [[link]] ··· similar

GRAPH SETTINGS

Node size Link thickness

FORCES

Repel force Link force Center force Link distance

DISPLAY

Show orphans

Capture a few ideas and the web appears here.

BRAIN DUMP

0:00

Diary photo

Local only · No account · Export to back up

Notes are stored only in this browser (localStorage, and photos in IndexedDB). No account, no server, no sync — export regularly to keep a backup.