Jot something down the moment it occurs to you without first deciding which brain or thought it belongs to; every quick thought lands in one inbox for your account, shared across all your devices
Capture inside or outside TheBrain: the Quick Thoughts button in the toolbar (Ctrl+Alt+N, Cmd+Option+N on Mac), a browser extension for Chrome, Firefox, and Safari, a global shortcut and tray icon in the desktop app, and widgets, tiles and shortcuts on iOS and Android
Write with the full notes editor, including formatting, images and web links; the browser extension can add the page you are on as a link
File each note into any of your brains as a new child thought, added to a thought's notes, or attached as a Markdown file; its links become web link attachments on the thought
Capturing works offline; notes are sent when you are back online