Ghostty
GPU-accelerated terminal with platform-native UI (Metal on macOS, OpenGL on Linux). Native multi-window, tabs and splits. Recommended by Boris Cherny for long Claude Code sessions with tmux. Faster iTerm2 alternative.
Strengths
- GPU-accelerated via Metal (macOS) / OpenGL (Linux), smooth rendering even on long sessions
- Platform-native UI: no Electron, minimal latency, perfect system integration
- Recommended by Boris Cherny for long Claude Code sessions with tmux
- 100% open source, no proprietary dependency or subscription
Limitations
- macOS and Linux only, not natively available on Windows
- Plugin ecosystem less developed than iTerm2, some specific extensions missing
Best for
- Claude Code developers on macOS seeking a performant terminal for long tmux sessions
- Migration from iTerm2 to a faster terminal without learning curve
- Multi-agent workflows requiring multiple active tmux panes simultaneously