Alternatives to f.lux for all platforms with any license





Indie / Classic

Other Platforms

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  • Redshift icon


    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 morning, the color temperature transitions smoothly from night to...

    Open Source Windows Linux BSD

  • RedshiftGUI icon


    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...

    Open Source Windows Linux

  • SunsetScreen icon


    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.

    Free Personal Windows

    • Just used it for a couple of minutes. But it really seems to do exactly what I need! Lets you choose the time, not like F.lux Guest • May 2016 Disagree   Agree
    • Can set also brightness level to change automatically. Can set the time to change to night time yourself. bklampflOct 2016 Disagree   Agree
    • A Hole Pletora of Configuration Options in comparison with F.lux, allowing setting for Daylight color, Transition Time of any user specified Duration, Full Disable of Program ( not just for a temporary specified time period ), HSB Color Schemes in addition to just Kelvin temperature profiles. Guest • Dec 2016 Disagree   Agree
    • So happy I can set my own times. In the winter the sunsets happened way to earlier in Flux, then I'd turn it off and forget to turn it back on. Guest • 3 days ago Disagree   Agree
  • Twilight icon


    The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.

    Freemium Android

  • Red Moon icon

    Red Moon

    Red Moon is a screen filter app for night time phone use. When the lowest brightness setting of your phone won't do the trick, Red Moon makes your screen even darker. With Red Moon, using your phone in the dark won't hurt...

    Open Source Android

  • G.lux icon


    G.lux is an unofficial variation of Flux, a desktop app that automatically changes the colour temperature of your monitor as the sun goes down. Monitors are typically daylight balanced, which can interfere with your sleep cycle when...

    Free Mac Windows Linux Chrome OS Chrome

    • It doesn't use the whole screen, only the current browser page. And the sunrise/set isn't "smart" like f.lux does with your location. Guest • Jun 2015 Disagree   Agree
  • Dimmer icon


    A very small and free utility for Windows to reduce brightness on LCD/TFT screens. A must if you work on your computer at night with very low ambient light.

    Free Windows

    • Discontinued The program is no longer updated. Latest version, 1.0, released in March 2007, can be still downloaded from the official website.
    • Dimmer controls monitor's brightness not color temperature. Guest • Jun 2015 Disagree   Agree
  • Screen Filter icon

    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, web browsing, and eBook reading. It even saves battery life for...

    Free Android Android Tablet

  • Iris mini icon

    Iris mini

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

    Free Mac Windows Linux

  • CF.lumen icon


    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 settings, your display will get a warmer tint (lower color...

    Freemium Android Chainfire3D

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  • iBrightness Tray icon

    iBrightness Tray

    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...

    Free Windows

    • Discontinued The program is no longer updated. Last version, 1.0, released in 2013, can be still downloaded from the official website.
    • It just changes brightness. F.lux changes colours according to time of day. Guest • Nov 2015 Disagree   Agree
  • NegativeScreen icon


    NegativeScreen is a Windows application allowing you to invert your screen colors. Apart from accessibility matters, this software is especially useful when you are surfing on the internet in a dark room, and the screen is dazzling...

    Open Source Windows

  • Blue Light Filter for Eye Care icon

    Blue Light Filter for Eye Care

    Blue Light Filter for Eye Care is an easy-to-use and useful app to protect your eyes while using Android devices. Blue light emitted from your smartphone or tablet causes eye strain and keeps you from falling asleep at night, this app...

    Free Android Android Tablet

  • Iris for Android icon

    Iris for Android

    Iris for Android is free blue light reduction and PWM flicker free brightness software for Android.

    Free Android

  • Calise icon


    A programs which adjust screen brightness due to light detectedby webcam

    Open Source Linux

  • Nocturne icon


    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.

    Open Source Mac

    • Discontinued The project has been abandoned. Last version, 2.0.0, released in September 2009, can be still downloaded from Google Code Hosting
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  • Shady icon


    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 any risk of damage to your screen.

    Free Mac

  • EasyEyez icon


    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? EasyEyez is the solution. Inspired by Flux for the PC...

    Freemium Android

  • Lumen icon


    Menu bar application for macOS to auto-adjust screen brightness based on your screen contents.

    Open Source Mac GitHub

  • Blueshift

    Inspired by Redshift, Blueshift adjusts the colour temperature of your monitor according to brightness outside to reduce eye strain and make it easier to fall asleep when going to bed.

    Open Source Linux

  • Iris icon


    Reduce eye pain, sleep better and be more productive and healthy with Iris. Iris is super customizable and actively developed. Want a new feature? Just write us a line.

    Freemium Mac Windows Linux

    • Iris has all the functionality of f.lux and much more Guest • Nov 2015 Disagree   Agree
  • RedshiftGUI by IrisTech icon

    RedshiftGUI by IrisTech

    Redshift GUI changes the color temperature of your monitor to better match that of your surrounding.

    Free Mac Windows Linux

    • Very simple and clean UI. Works perfectly. Guest • Yesterday Disagree   Agree
  • Turn Off the Lights for Desktop icon

    Turn Off the Lights for Desktop

    Turn Off the Lights for Desktop is a powerful, helpful app to dim your whole desktop and protect your eyes at night. Turn Off the Lights for Desktop allows you to work, play in a dark environment without damaging your eyes.

    Commercial Mac Windows

    • Flux changes the color temperature of the screen for night-time usage, this thing just dims the screen except for a certain window. Guest • Dec 2015 Disagree   Agree
  • Screen Shader icon

    Screen Shader

    Screen Shader is a chrome extension designed to tint the screen a “cozy” orange color to reduce eye strain, eye fatigue, and restore day/night balance, while also providing a wide variety of settings for everyone's different...

    Free Personal Chrome OS Chrome

  • myPoint Shade icon

    myPoint Shade

    Stop burning your eyes! myPoint Shade is caring for your eyes' comfort. If you work in a dark room or struggle with eye strain and headache, myPoint will tune up your displays - this way it will care for your health and...

    Commercial Mac

  • neyetLight icon


    NeyetLight is kind to your eyes! NeyetLight (pronounced like nightlight) changes the color and brightness of your Android device's (phone, tablet or otherwise) screen ...

    Commercial Android

  • GoodNight icon


    GoodNight is an IOS app developped by @anthonya1999 (Github).It allows you to adjust the screen temperature, brightness, and color. GoodNight isn't downloadable from the apple app store.(Guide to...

    Free iPhone iPad

  • Night Screen icon

    Night Screen

    Night Screen is created for those people who spend a lot of time at night working. Limit your exposure to energy-efficient lighting before bed. In addition to the LED screens in your electronics, energy-efficient lighting emits a...

    Commercial Mac

  • Night Shift: Blue Light Filter icon

    Night Shift: Blue Light Filter

    Do you use your mobile phone after sunset? Do you use your phone within three hours of your bed time? If yes, then your device might be taking your sleep away. Bluelight from your mobile screens sends a signal to brain to wake up, and...

    Free Android Android Tablet

  • NightTone icon


    NightTone makes your screen more comfortable, enjoyable and healthier by shifting the colors of your display to a warmer, eye-friendly palette. It makes you sleep and feel better.

    Commercial Mac

  • PC Sun Screen

    This advanced Windows app allows you to alter the screen shading according to the time of day, which is great if you work outside the normal hours, or if you need a lift in the afternoon. You can set the colour tints and your awake...

    Commercial Windows

  • Lux Lite icon

    Lux Lite

    Lux isn't your ordinary brightness app. It intelligently adjusts the brightness of your display based on the environment you're in. If you step into a dimly lit room, Lux will automatically lower the brightness of your display...

    Freemium Android Android Tablet

    • One control brightness and the other is used to control color of screen DigitalDietJan 2016 Disagree   Agree
  • NEC Brightness Controller icon

    NEC Brightness Controller

    Brightness Controller easily allows windows users to set the brightness level of your LCD screen (It is very useful when your screen doesn't allow settings to be remembered without having to push many buttons on your screen!). It...

    Free Windows

    • Discontinued Last version, 1.0.0, was released on 2003. It is no more available on the official website, but it can be still downloaded from Wayback Machine. It works on Windows 7 too.

f.lux Comments

Please open source it

Comment by TimPl
about f.lux Jun 2016

Why not?


I can't express how much I enjoy f.lux! This is all I am gonna say!

Positive Comment by sukera
about f.lux Mar 2016

I can't express how much I enjoy f.lux! This is all I am gonna say!



Comment by Mustt
about f.lux Dec 2014

Une petite application très pratique que j'utilise depuis quelque temps déjà pour le sécurité des yeux. à essayer...


I don't get it

Negative Comment by Azazel
about f.lux May 2014

This application makes my eyes sore and my vision gets blurry when the app comes into play in the evenings. I really don't understand the reason behind so pervasive praising of this program. Dammit, why not just manually adjust the brightness of the monitor at night or, even better, aim to use your computer only during daylight hours? Why would someone rely on some piece of software that's basically aimed to decide what's best for eyes without even knowing the model of the monitor or anything about its settings?
And that expression from the description cracks me up: "During the day, computer screens look good—they're designed to look like the sun." Designed to look like the Sun you say? No sh*t. Last time I tried gazing at the unclouded Sun for more than a couple of seconds I felt like my eyes are going to die on me. I am sure as hell I haven't ever experienced anything similar with any of my bloody computer screens.


best addon ever!

Positive Comment by nglopenshaw
about f.lux Aug 2012

This has single handedly increased my hours in front of the computer screen, for the better that is. Thank you so much, you have made a great tool!



Positive Comment by nironan12
about f.lux Oct 2011

I can't live without this app! I've had it for a long time now and it's definitely helped my eyes.


I see. Might try this on my desktop then (when I use it). T ...

Comment by runical1991
about f.lux Jun 2011

I see. Might try this on my desktop then (when I use it). Thanks for the clarification.


How is this different from an ambient light sensor in a lap ...

Comment by runical1991
about f.lux Jun 2011

How is this different from an ambient light sensor in a laptop (which also consumes less resources) ?


Overly-restrictive licensing:"We hereby grant you a nonexcl ...

Comment by NginUS
about f.lux Jun 2011

Overly-restrictive licensing:

"We hereby grant you a nonexclusive license to use one copy of the Software on any single computer, provided the Software is in use on only one computer at any time."


Well I must say that the app developer is awesome! I sent ...

Comment by calavera
about f.lux Jun 2011

Well I must say that the app developer is awesome! I sent a twitter message to him regarding the problems with the new macbook pro and within two hours I received a reply with a link to a beta build that fixed the issue. He even sent me another build immediately after where he fixed another issue he found. So all is well again, however the version with the fix is not yet publicly available. If you happen to have this same problem, check out @herf's feed (the developer) on twitter and you will find the link to the beta build.


And.... now it won't work on the new Macbook pro :/ every ...

Comment by calavera
about f.lux Jun 2011

And.... now it won't work on the new Macbook pro :/ every time the display switches between the integrated and dedicated graphics card, the screen gets redder which basically is a complete no go.


This app is great... I've had problems with insomnia for as ...

Comment by calavera
about f.lux Jun 2011

This app is great... I've had problems with insomnia for as long as I can remember. Within 30 minutes of downloading and installing this app last night (@4 in the morning), I fell asleep with my laptop on the couch. There's definitely something to this "blue" spectrum thing.