Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.
Cost / License
- Free
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux




Blackout is described as 'The Macs ultimate screen dimmer and focus aid. In fact, its the only app of its kind, with 4 distinct display modes including a spotlight that follows the cursor, which can be synced across single or dual displays!' and is a Screen Dimmer. There are more than 10 alternatives to Blackout for Windows, Linux, Mac, Android and BSD. The best Blackout alternative is f.lux, which is free. Other great apps like Blackout are Redshift, RedshiftGUI, Dimmer and PangoBright.
Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.




Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.

RedshiftGUI changes the color temperature of your monitor to better match that of your surrounding. This means that it sets a cooler color temperature during the daytime (due to natural lighting) and sets a warmer temperature at night (due to indoor lighting). Similar to f.





Screen dimming software that allows you to control the brightness of your screens as well as external monitors.

Reduces blue light and flicker for eye comfort, supports auto color temperature adjustment based on time, customizable modes, overlays, color and font options, docking station support, and accessible part-screen filtering for diverse needs.


iBrightness Tray is a little bit of a swiss army knife display tool as adjusting the brightness of your screen is just one of three main functions it has. The other two are turning on your screensaver at the click of a button and also the ability to turn off the display...

Trouble Sleeping? Device screen too bright even on the lowest brightness setting? Want to give your phone a warm look instead of that eye straining blue gaze you see at night? EasyEyes is the solution. By changing your device's color temperature, EasyEyes reduces eye strain...




Nocturne is simple app for switching a computer to night vision mode. It has a few tricks up its sleeve: color correction, window shadow toggling, and background removal.

A Python program that calculates ambient brightness and sets screen's correct backlight using a camera.
