The smart blue light filter that reduces eye strain and improves sleep. Professional-grade protection for Mac and Windows.
100% Free • Open Source • No Ads
Professional-grade blue light protection that actually works.
Uses the same technology as f.lux and Iris. Directly adjusts your display's gamma for a clean, blur-free filter.
Adjust from 1200K (deep amber) to 6500K (daylight). Find the perfect warmth for any time of day.
Dim your screen beyond system limits. Perfect for late-night work without straining your eyes.
One-click presets for Day, Sunset, Night, and Sleep modes. Instantly switch between settings.
Works on MacBook Air, MacBook Pro (Intel & Apple Silicon), and Windows 10/11 PCs.
Scientifically designed to reduce eye strain and protect your vision during extended screen time.
Free forever. No account required. No ads. Ever.
macOS: Intel & Apple Silicon • Windows: 64-bit