The Best f.lux AlternativesTop Color Temperature Tools & Screen Dimmers like f.lux

f.lux is described as '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' and is a leading color temperature tool in the system & hardware category. There are more than 50 alternatives to f.lux for a variety of platforms, including Windows, Linux, Mac, Android and Android Tablet apps. The best f.lux alternative is Redshift, which is both free and Open Source. Other great apps like f.lux are LightBulb, SunsetScreen, RedshiftGUI and Red Moon.

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f.lux alternatives are mainly Color Temperature Tools but may also be Screen Dimmers or Dark Mode Enforcers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of f.lux.

f.lux

959

Color Temperature Tool
Free • Proprietary

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.

More about f.lux

f.lux alternatives page was last updated Jul 7, 2024

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Redshift
253 likes
Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime.
53 Redshift alternatives
License model
Free • Open Source
Application types
Color Temperature Tool
Screen Dimmer
Platforms
Mac
Windows
Linux
BSD
Properties
Lightweight
Features
Blue light filter
Color correction
Dark Mode
Command line interface
Portable
Support for Multiple Monitors
Ad-free
Display Management
Cross-Platform
Fedora Repository
Debian package compatible
System management
KDE Widget
Discontinued
No longer working on modern systems, and no longer updated.
Redshift VS f.lux
Is Redshift a good alternative to f.lux?
Comments about Redshift as an Alternative to f.lux

danhaiduc
This is open source, while f.lux wants you to download a binary and run it constantly on your system.
Top positive comment •Jul 4, 2018
7
Guest
It doesnt't work sometimes...
Top negative comment •Oct 7, 2017
0
Guest
It's just not as good as f.lux is.
Negative comment •Jan 25, 2020
-14
Show more comments
3 of 9 comments
- Most users think Redshift is a great f.lux alternative.
- Redshift is the most popular Windows, Mac & Linux alternative to f.lux.
- Redshift is the most popular Open Source & free alternative to f.lux.
- Redshift is Free and Open Sourcef.lux is Free and Proprietary
- Redshift is Lightweightf.lux is not according to our users

LightBulb
102 likes
Background application that adjusts screen gamma, making the colors appear warmer at night, reducing strain on your eyes.
55 LightBulb alternatives
License model
Free • Open Source
Application types
Color Temperature Tool
Screen Dimmer
Platforms
Windows
Properties
Lightweight
Customizable
Optimal performance
Features
Color Temperature
Portable
Blue light filter
Support for Hotkeys
Fullscreen Pause
Automatic Lighting Control
Dark Mode
Application Whitelist
Color correction
Graphical User Interface
Application whitelisting
Sane defaults
LightBulb VS f.lux
Is LightBulb a good alternative to f.lux?
Comments about LightBulb as an Alternative to f.lux

Comment summary: LightBulb is praised for being user-friendly, open-source, and highly configurable, offering customizable schedules and minimal performance impact, making it ideal for gamers. It provides similar features to f.lux but with additional customization options like hotkeys and the ability to disable effects during full-screen applications. Users highlight its stability, lightweight nature, and superior performance, especially on Windows, as a better alternative to f.lux.
Mark
user-friendly interface and easily configurable
Top positive comment •Nov 8, 2022
0
Guest
Has a customizable schedule instead of 50 meme filters no-one will ever use.
Positive comment •Jan 11, 2021
1
Guest
Open source, far more options, faster
Positive comment •Jan 28, 2019
2
Show more comments
3 of 11 comments
- Almost everyone thinks LightBulb is a great f.lux alternative.
- LightBulb is Free and Open Sourcef.lux is Free and Proprietary
- LightBulb is Lightweight and Customizablef.lux is not according to our users

SunsetScreen
33 likes
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.
53 SunsetScreen alternatives
License model
Paid • Proprietary
Application type
Color Temperature Tool
Platforms
Windows
Properties
Lightweight
Features
Portable
Customizable shortcuts
Display Management
Temperature Monitoring
Reduce Eyestrain
Support for Keyboard Shortcuts
SunsetScreen VS f.lux
Is SunsetScreen a good alternative to f.lux?
Comments about SunsetScreen as an Alternative to f.lux

Bruno Klampfl
Can set also brightness level to change automatically. Can set the time to change to night time yourself.
Top positive comment •Oct 5, 2016
4
Guest
Much better transitions and less laggy
Positive comment •Apr 28, 2018
-1
Guest
I can change the settings in this software to activate in 24 hours but I can't active red layer in Flux in 24 hours.
Positive comment •Aug 8, 2017
0
Show more comments
3 of 9 comments
- Most users think SunsetScreen is a great f.lux alternative.
- SunsetScreen is the most popular commercial alternative to f.lux.
- SunsetScreen is Paid and Proprietaryf.lux is Free and Proprietary
- SunsetScreen is Lightweightf.lux is not according to our users

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RedshiftGUI
91 likes
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 (due to indoor lighting). Similar to f.
46 RedshiftGUI alternatives
License model
Free • Open Source
Application type
Color Temperature Tool
Platforms
Windows
Linux
RedshiftGUI Features
Color management
Reduce Eyestrain
Discontinued
The project seems to be no longer developed. Last version, 0.2.4, released in August 2014, can be still downloaded from GitHub.
RedshiftGUI VS f.lux
Is RedshiftGUI a good alternative to f.lux?
Comments about RedshiftGUI as an Alternative to f.lux

Guest
it is much easier to install and just works right away!
Positive comment •Jan 21, 2018
1
- Most users think RedshiftGUI is a great f.lux alternative.
- RedshiftGUI is Free and Open Sourcef.lux is Free and Proprietary

Red Moon
50 likes
The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.
37 Red Moon alternatives
+4
License model
Free • Open Source
Application types
Color Temperature Tool
Screen Dimmer
Platforms
Android
F-Droid
Red Moon Features
No Tracking
Time Scheduling
Automatic brightness dimming
Color correction
Blue light filter
Red Moon VS f.lux
Is Red Moon a good alternative to f.lux?
Comments about Red Moon as an Alternative to f.lux

arsCynic ??
Straightforward. Fast. No ads. No trackers.
Positive comment •Sep 22, 2023
1
- Almost everyone thinks Red Moon is a great f.lux alternative.
- Red Moon is the most popular Android alternative to f.lux.
- Red Moon is Free and Open Sourcef.lux is Free and Proprietary

Twilight
54 likes
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.
43 Twilight alternatives
License model
Free • Proprietary
Application type
Color Temperature Tool
Platforms
Android
Twilight Features
Dark Mode
Color correction
Blue light filter
Display Management
Automatic brightness dimming
Twilight VS f.lux
Is Twilight a good alternative to f.lux?

Iris mini
18 likes
Iris mini is free and minimalistic version of Iris. Small. Minimalistic. Free. Portable. Automatic. Awesome for everyone. Just double click and it will work.
52 Iris mini alternatives
License model
Freemium • Proprietary
Application type
Color Temperature Tool
Platforms
Mac
Windows
Linux
Iris mini Features
Blue light filter
+3
Iris mini VS f.lux
Is Iris mini a good alternative to f.lux?
Comments about Iris mini as an Alternative to f.lux

Guest
Very minimalistic and lightweight. Doesn't affect games (i.e. microstuttering) the way f.lux does (if you set it to Paused mode).
Positive comment •Jan 24, 2017
-2
- Most users think Iris mini is a great f.lux alternative.
- Iris mini is Freemium and Proprietaryf.lux is Free and Proprietary