Alternatives to Twilight for all platforms with any license

f.lux

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.
- Well It has a very nice pause feature! Very easy to use, and 1 of the best apps I have ever seen like this! Guest • Nov 2017 • 2 agrees and 0 disagrees
- works well, nice pause feature, very customizable. Guest • Mar 2017 • 1 agrees and 3 disagrees
Free Mac Windows Linux Android iPhone ... Android Tablet iPad
Blue light filter Night mode/Dark Theme Scheduling Temperature Monitoring ... Time Scheduling Add a feature

829 Like
Redshift

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

Free Open Source Windows Linux BSD
Color correction Color Temperature Ajustment Blue light filter Command line interface ... Debian package compatible Fedora Repository KDE Widget Night mode/Dark Theme System management Add a feature

216 Like
LightBulb

Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes.

Free Open Source Windows
Customizable Lightweight Portable Configurable ... Night mode/Dark Theme Automatic brightness dimming Automatic Lighting Control Blue light filter Color correction Optimal performance Add a feature

48 Like
RedshiftGUI

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...
- Discontinued The project seems to be no longer developed. Last version, 0.2.4, released in August 2014, can be still downloaded from GitHub.
Free Open Source Windows Linux
No features added Add a feature

88 Like
Red Moon

The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer. Red Moon is a screen filter app for night time phone...

Free Open Source Android F-Droid
Automatic brightness dimming Blue light filter Color correction Color Temperature Ajustment ... Time Scheduling Add a feature

33 Like
SunsetScreen

Whether you're a morning lark or night owl, SunsetScreen allows you to set the time of the sunset and sunrise, so you can have full control over your sleep cycle.
- Warning This software was previously clean, but the official website is now linking versions with a malware Cryptocurrency miner that will use the computers' resources while hidden in the background. It will also use Internet data, and could cause users to go over their internet plan, costing them money.
- You can set the exact time to dim screens, just like Twilight, and it not only adjusts colour but dims screen brightness, too. Two things that the leading competitor, Flux, doesn't do. Guest • Sep 2018
Free Personal Windows
Customizable Support for Keyboard Shortcuts Lightweight Portable ... Temperature Monitoring User-controlled day/night time Add a feature

29 Like
Desktop Dimmer

Enables darker-than-dark Desktop dimming for your displays. - Small resource footprint, minimal User Interface. - Settings are persisted and restored per-Display...
- Discontinued The last commit to the project is from November, 16 2017 and it gave some users a bunch of deprecation errors when they tried to install and run it.
Free Open Source Mac Windows Linux
Automatic brightness dimming Add a feature

12 Like
Iris mini

Iris mini is free cross-platform blue light reduction and PWM flicker free brightness software.

Freemium Mac Windows Linux
No features added Add a feature

13 Like
G.lux

G.lux is an unofficial variation of F.lux. G.lux is an app that automatically changes the colour temperature of your browser as the sun goes down. Monitors are typically...

Free Mac Windows Linux Chrome OS Chrome
Google Chrome Extensions Night mode/Dark Theme Add a feature

24 Like
Windows Night Light

Your display emits blue light—the kind of light you see during the day—which can keep you up at night.

Commercial Windows
Blue light filter Night mode/Dark Theme Add a feature

5 Like
Screen Filter

Applies a shade that acts as a dimmer to ensure your eyes don't hurt. Far more powerful than Android's built-in brightness setting. Great for low-light gaming...

Free Android Android Tablet
Dimmer Add a feature

6 Like
CareUEyes

CareUEyes is a very simple but useful program when it is about your eye care. The program comes with a very simple and clean interface and needs to technical knowledge....

Commercial $ $ $ Windows
Automatic brightness dimming Blue light filter Add a feature

3 Like
CF.lumen

CF.lumen - don't let your phone blind you! CF.lumen changes the colors of your Android device's display based on the position of the sun. With the default...
- It seems technically better... it alters display gamma curve instead of just overlaying a semi-transparent filter like most of the others do. Guest • Jun 2016 • 1 agrees and 0 disagrees
Freemium Android Chainfire3D
Location-based Root required Add a feature

7 Like
Eye Saver

Free software for eye protection and more! It protects your eyes while you are working on the computer. Eye Saver has three main functions: blue light filter;...

Free Windows
Blue light filter Break timers Night mode/Dark Theme Removes screen flickering Add a feature

4 Like
Shady

Shady puts a shade over your screen to help soothe your tired or dazzled eyes. You can use it to reduce your Mac's brightness far below the usual minimum, without...
- it can reduce screen brightness. as far as i know f.lux can not reduce screen brightness. Guest • Nov 2016
Free Open Source Mac
No features added Add a feature

5 Like