Multi-Claude lets you run multiple Claude Desktop accounts side by side on one Mac. Each account is a real dock app with its own icon, history, and login. It detects your existing Claude install and offers to import your history into a named profile, keeping the original as backup. Profiles live entirely on your Mac — no accounts to create, no data sent anywhere. Name each profile (Work, Personal, Side project), pick a color, and switch between them with Cmd-Tab like any other app. Multi-Claude is a thin wrapper that launches the real Claude app with a different data directory.