Twilight
Twilight is a free open source software that adjusts your screen to reduce eye strain. It makes the color of your screen adapt to the time of day, reducing the amount of blue light emitted. This helps prevent disruption of your circadian rhythms and improves sleep.
blue-light
eye-strain
circadian-rhythm
open-source
Twilight: Free Open Source Blue Light Reduction Software
Free open source software that adjusts screen color to reduce eye strain, adapt to time of day, and prevent disruption of circadian rhythms.
What is Twilight?
Twilight is a free and open source software application developed for Linux and Android that adapts your screen based on the time of day to reduce eye strain. It works by making the color temperature of your display adapt to the time, reducing the amount of blue light emitted by your screen at night.
Blue light emitted from screens can negatively impact sleep by suppressing melatonin production and disrupting your circadian rhythms. By reducing blue light exposure in the evening, Twilight helps prevent this disruption of your natural sleep cycles.
During the day, Twilight does not change the appearance of your screen much. But as evening approaches and the sun sets, it gradually makes the colors warmer and reduces blue light based on your location's sunset time. This helps ease the transition for your eyes and brain into nighttime mode.
Many studies have linked blue light exposure from screens at night to reduced sleep quality and daytime fatigue and irritability. By limiting blue light emissions in the evening with Twilight, users report reduced eyestrain at night, better sleep quality, and an easier time waking up refreshed.
With its intuitive interface and timing linked to your local sunset, Twilight makes it simple to reduce disruptive blue light exposure from your digital devices. It's a small change that can make a big difference in improving sleep issues associated with evening screen use.
Twilight Features
Features
- Adjusts screen color temperature
- Reduces blue light emission
- Adapts to time of day
- Can be scheduled
- Open source
Pricing
- Free
- Open Source
Pros
Reduces eye strain
Improves sleep
Customizable
Free
Cons
May alter color accuracy
Requires manual adjustment
Limited to adjusting color temperature
Official Links
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