Blue Light Filters

Blue light filters can help reduce eye strain looking at monitors. Most devices have a blue-light filtering option available.

Windows 10 and MacOS have their own blue light filters and there are a number of third-party apps that you can use as well.

How to set Blue Light Filters on your Mobile Phone

Windows 10

Microsoft added a blue light limiting feature to Windows 10 it is called the  “Night light,” this feature shifts the Windows 10 display to show warmer colors that reduce the amount of blue light that’s emitted.

Turning the Night light feature on is a simple enough process.

Step 1: Open up the settings menu by searching for it in the Windows 10 search box, or press the Windows key and X and then click Settings.

Step 2: Choose System from the menu.

Step 3: Select Display from the left-hand menu if it isn’t already.

Step 4: Toggle the Night light switch to on.

Windows Display Settings Window

To configure the Night light feature, click Night light settings.

Configuration options include the ability to turn the Night light on immediately, adjust the color temperature while the feature is enabled, and schedule when the Night light will turn on and off.

Windows Night Light Settings Display box

To set the schedule, toggle the Schedule night light option to on. Then, you can either choose to let Night light turn itself on at sunset and off at sunrise (automatically determined by your location)

You can set the time manually by clicking Set hours and choosing when the feature should turn on and off.

When you first turn the feature on, you’ll notice the color shift immediately. After a while, your eyes will adjust to the change and it should be less intrusive.


First introduced in iOS, Apple brought Night Shift to Macs in MacOS Sierra in March 2017.

As with Windows 10, the feature is easy enough to turn on and configure to your tastes.

Step 1: Open System Preferences.

Step 2: Select Displays, then click on the Night Shift tab.

Picture of MacBook

On the settings page, you can configure when the Night Shift feature will automatically run, turn it on until the next day’s sunrise, and set the color temperature to your preference.

In terms of scheduling, you can let MacOS turn it on and off at sunset and sunrise based on your location, or you can set a custom schedule.

Picture of Mac Display settings options for night shifr

Just like with Windows 10’s Night light feature, Night Shift will make your display’s colors warmer and reduce the amount of blue light that’s emitted.

Third-party alternatives

F.lux — Free for WindowsMacOS, and Linux platforms, f.lux is a filtering tool that tracks the sun in your local area to make sure that the color temperature of your monitor(s) matches the local light level.

It features the option to turn it off for fullscreen apps (so games and photo-editing aren’t overly affected) and it can even integrate with smart lighting systems if you want to automatically tweak your room lighting at the same time.

Iris mini — A truly lightweight blue-light filter application, Iris mini has no UI, no buttons, and no “confusing options,” just the ability to adjust your monitor’s coloring to best protect your eyes from glare and harmful blue light.

You can manually control it if you wish, but the automatic mode will keep up with where the sun is in relation to your location and automatically adjust your screen’s coloring accordingly.