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Coincide: Claude Code, Codex, Cursor and more, side by side on your Mac - DEV Community
Coincide is a free, open-source Mac app that runs multiple coding agents side by side in one window, with per-thread control, Git integration, and background operation. It emphasizes local operation, API-key authentication, and inline approvals, with built-in tools for search, pinning, and cross-agent handoffs.