Free blue light blocking software
- Free software that adjusts color temperature according to the time of day to protect your eyes
The color temperature is adjusted to a lower level for easier viewing during bright daytime hours and a higher level in the evening and at night, protecting your eyes while maintaining visibility. Because it reduces blue light, the screen appears yellowish, but you'll get used to it after a while. If you want to disable it to check the design, you can disable it for just one hour or close the software altogether to restore it to its original state.
Supported OS: Windows, Mac, Linux, AndroidVersion: 4.137 (2024/08/09)Provided by: Flux Software LLC - Multi-monitor compatible display dimming software
This is a very simple and lightweight multi-monitor display brightness adjustment software.
You can adjust the brightness and color temperature for each monitor to find the optimal brightness.
All operations are controlled from the menu in the task tray icon.
If you want to temporarily disable this software and return to the original brightness, you can click "enabled" to enable/disable it.Supported OS: Windows 7/8/8.1/10Version: 0.3 (2017/11/01)Provided by: clangen - Software that can adjust the screen color to a darker level than the display settings
If you are still dazzled even after lowering the brightness of your display to its maximum, you can use this software to adjust the brightness of your display and make it darker. When you start this software, it will darken the entire screen with a black base. You can also cut blue light by changing the color base to a yellow base, or adjust the intensity to make the color base stronger.
Supported OS: Windows XPVersion: 1.05 Beta 4 (2005/07/21)Provided by: Ryota Yamauchi*Hotkeys cannot be used on Vista or later. - Software that automatically adjusts the color temperature of the display according to the time of day, reducing eye strain
This software automatically adjusts the display's color temperature according to sunrise and sunset, relieving eye strain. When enabled, the display appears with a slightly yellowish color temperature, becoming more yellow as the night approaches, reducing eye strain. It can also be disabled for a certain period of time, allowing you to return the color temperature to its normal state if you want to check the color tone more clearly. You can also adjust the color temperature between 6600K and 2500K during the day and night, and manually fine-tune the automatically set sunrise and sunset times.
Supported OS: Windows 7 or laterVersion: 2.6.3 (2025/05/23)Provided by: Alexey Golub - Shareware
- Trial version ✕
Software that adjusts the blue light reduction rate according to your circadian rhythm (body clock) to protect your eyes and body.This software cuts blue light and allows you to set a display that is gentle on the eyes and body. The default setting reduces blue light and sets a yellow-based screen, but you can also change it to a pink-based, green-based, or gray-based screen. It supports hotkey ON/OFF settings, so you can quickly turn it on or off depending on the situation. It also has a setting that automatically adjusts to reduce blue light at night compared to daytime in line with your circadian rhythm (body clock), and an alarm setting that will display an alarm two hours before bedtime to encourage you to get a good night's sleep.
Supported OS: Windows 10/11, macOS 10.12/10.13/10.14, iOSProvided by: Sourcenext Corporation*This software is . A trial version was previously available, but is no longer available.- Software that can apply a gray filter to your desktop screen
This software is useful when your PC monitor's brightness is set to its lowest setting but it's still too bright, or you want to make it even darker. When this software is turned on, a gray filter is applied to the screen. By adjusting the darkness and transparency sliders, you can adjust the screen brightness to find the perfect display brightness. Turning it off will return it to its original state.
Supported OS: Windows 10 (64-bit)Version: 2-2-2-118 (2023/01/23)Provided by: OrangeMaker - Software that can add a color veil to your desktop screen
This software allows you to apply a filter of your choice to your desktop screen.
You can select the color you want to use from the color palette, or enter the HTML code or color name, and adjust the transparency.
To turn this software on or off, click the icon in the task tray or use the hotkey.Ctrl+F11The advantage is that you can quickly switch between them and use them only when you want to, as all you have to do is press a key.Compatible OS: Windows XP/Vista/7/8/8.1/10Version: 4.0 (2021/03/06)Provided by: East-Tec - Shareware
- Trial version ○
Software that prompts you to take breaks at regular intervals to give your eyes a restWhen you're constantly working at a computer, your eyes can become strained without you even realizing it.
This software encourages you to take regular breaks to relax your eyes, shoulders, and lower back.
The default setting is to lock your PC every 60 minutes and semi-enforce a 5-minute break.
The timer can be adjusted from 1 to 120 minutes, and the break time can be adjusted from 1 to 60 minutes. Settings are also available to change the screen's color temperature and cut blue light to reduce eye strain.Compatible OS: Windows XP/7/8/8.1/10/11Version: 2.4.10.0 (2025/07/25)Provided by: alisen keen* This software is , but you can try it for free for 7 days.
* It has been a paid software since version 1.1.1.8.
* There is also a Lite version that can be used indefinitely as a free version . The Lite version has completely different functionality, has no interface, and can only be turned on/off from the task tray icon and adjust the brightness to one of five levels: 20%, 40%, 60%, 80%, or 100%.- Shareware
- Trial version ○
Software that automatically adjusts display brightness according to the time of day and cuts blue lightBlue light emitted from the display affects the secretion of melatonin, which regulates biological rhythms, and increases the likelihood of disturbing a good night's sleep. This software cuts out blue light and adjusts the screen brightness to an appropriate level.
This software sets the sunrise and sunset times and automatically adjusts the screen brightness during the day and at night. Brightness can be selected from presets (1850K to 6600K). Uncheck "Running" orCtrl+/Pressing this key will turn the software on and off.Compatible OS: Windows XP/Vista/7/8/8.1/10Version: 1.50 (2022/08/24)Provided by: Daniel White*This software is , but you can try it for free for 7 days. After the 8th day, you can use it for free in exchange for providing your PC's resources.
*It has been a paid software since v1.30.- A small soft screen that lowers color temperature to protect your eyes
This software lowers the color temperature depending on the time of day or night to protect your eyes.
In "Automatic" mode, the brightness is 5000K at 100% during the day and 3400K at 80% at night. In "Manual" mode, the brightness is always 3400K at 80%. In "Paused" mode, the color temperature is paused.
While you can't fine-tune the color temperature, you can change modes by simply clicking the task tray icon, making it easy to use.Compatible OS: Windows XP/Vista/7/8/8.1/10, Mac, LinuxVersion: 0.4.1 (2019/06/18)Provided by: Daniel Georgiev
