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claude-duo

v2.2.1

Published

Open two Claude Code sessions in one Windows Terminal window, with per-pane account isolation, email titles, and sticky login after exit.

Vulnerabilities

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Links

Git

Maintainers

mferasatalimferasatali

Keywords

claudeclaude-codewindows-terminalsplit-pane

Readme

Claude Duo

Open-source Windows tool that opens two Claude Code sessions in one window.

Optional: left pane = your current account, right pane = a second Claude account (separate login).

Requirements

Install (npm)

npm install -g claude-duo
claude-duo

One-shot, no install:

npx claude-duo

Needs Windows 10/11, Windows Terminal, and Claude Code.

GitHub Packages

Shows on the profile Packages tab:

npm install -g @mferasatali/claude-duo --registry=https://npm.pkg.github.com

Most people should still use npx claude-duo from npmjs.

From GitHub (source, no registry)

git clone https://github.com/mferasatali/claude-duo.git

Double-click ClaudeDuo.bat, or Pin to Desktop in the app.

Use

  1. Pick the project folder(s).
  2. Choose Left pane account and Right pane account (must be different).
  3. Click Open 2 Claude Code.
  4. Left pane uses ~/.claude (Personal). Right pane uses its own folder (e.g. ~/.claude-account-2 for Work).
  5. Each pane tab title shows the logged-in Claude email (after /login).
  6. First time per account: in that pane type /login once. Logins stay saved in that account's config folder.
  7. If you /exit Claude, the pane keeps the same account. Press R to restart, or cd to another project and type claude again.
  8. Use Open left/right account only to switch to a single account in a new window.

Do not type claude in a blank Command Prompt. The tool starts it for you.

Command line

powershell -ExecutionPolicy Bypass -File .\ClaudeDuo.ps1 -NoGui -Left "C:\projA" -Right "C:\projB" -Split vertical -Maximized

-Split is vertical (side by side) or horizontal (stacked).

How it works

  • Uses Windows Terminal split panes (wt.exe).
  • Each pane sets CLAUDE_CONFIG_DIR to an isolated folder so logins, history, and settings never mix.
  • Pane titles show the account email from oauthAccount.emailAddress.
  • After Claude exits, CLAUDE_CONFIG_DIR stays in that pane so claude does not fall back to the global login.
  • Settings (folders, accounts, layout) auto-save to %APPDATA%\ClaudeDuo\config.json.

License

MIT