Lightweight macOS menu bar tool for multi-display management. Built entirely through agentic coding with Claude Code.
- HiDPI for non-4K displays — Enable HiDPI (Retina rendering) on 2K/1440p external monitors. Instant, no logout required.
- Resolution & refresh rate switching — Full mode list including HiDPI modes.
- Display on/off — Disable external displays without unplugging. Auto-restores on quit.
- Set main display — Promote any display to primary with one click.
- Auto-restore — Remembers HiDPI state and resolution per display. Auto-restores on reconnect and app launch.
- Launch at login — Native macOS login item support.
- macOS 13+ (Ventura or later)
- Apple Silicon Mac
make # build
make install # install to /Applications
make run # build and run
make clean # clean build- No network requests
- No data collection or telemetry
- No sensitive data stored (only display vendor/product IDs and mode numbers in UserDefaults)
- No special permissions required
This is an experimental open-source tool for power users. The software is provided as-is, without warranty of any kind. It has not been exhaustively tested across all hardware configurations. Use at your own risk — the authors are not responsible for any issues that may arise.
MIT