Open-Source Screen Dimmer for Visual Comfort
A lightweight, cross-platform desktop utility that reduces screen brightness beyond your system's minimum. Native apps for Windows and macOS with zero CPU overhead.
Everything you need for comfortable screen brightness, nothing you don't.
Fine-tune brightness from 0% to 90%, perfect for late-night work or sensitive eyes.
Independent brightness per display, remembers your settings by display name.
Automatically hidden from screenshots and screen recordings — your captures stay clean.
Control dimming from anywhere. Hotkeys target the monitor under your cursor.
Built with Rust. Near-zero CPU usage, ~5 MB RAM footprint. No Electron, no bloat.
Dark theme interface with card-based layout, smooth sliders, and custom toggle switches.
Automatic update checks with one-click install. Downloads, replaces, and relaunches itself.
Works in all full-screen apps, games, and virtual desktops. macOS uses GPU-level gamma tables.
Native system APIs for maximum performance and reliability.
Uses the built-in Windows Magnification API to apply a colour transform at the compositor level.
Adjusts display gamma via CGSetDisplayTransferByFormula at the GPU output stage.
No polling loops, no timers. Changes are applied once and held by the OS. Your CPU stays idle.
Control brightness without touching the mouse.
| Toggle On / Off | Ctrl Alt End |
| Increase Opacity | Ctrl Alt ↑ |
| Decrease Opacity | Ctrl Alt ↓ |
| Toggle On / Off | Cmd Shift D |
| Increase Opacity | Cmd Shift > |
| Decrease Opacity | Cmd Shift < |
Built with ❤️ as part of KraftPixel's open-source initiative.
Download the latest release and start dimming in seconds. Free forever.