ScreenTemperature reduces blue light from a display and provides brightness controls.
Open source
24 alternativesf.lux
f.lux adjusts computer screen lighting for the time of day, reducing the blue glow of a display at night.
About f.lux
f.lux adjusts a computer display's color for the time of day, using warm tones at night and sunlight-like tones during the day to match indoor lighting. The user enters lighting type and location, and the software then adjusts automatically. Downloads are listed for Windows, macOS and Linux, with the Windows version described as free for personal use and a separate corporate edition noted for work use.
Key features
- Adjusts screen color for time of day, warm at night
- Matches screen appearance to indoor lighting after sunset
- Uses location and lighting type for automatic adjustment
- Controls lights to change with screen color
- Offers downloads for Windows, macOS, and Linux
- Measures spectrum of lights, eyewear, and devices
Best for: People who use a computer late at night and want the screen color to match indoor lighting.
Good for
- Adjusts automatically after lighting type and location are entered
- Supports Windows, macOS and Linux
Watch out for
- Windows version is described as free for personal use, with a separate corporate edition for work use
f.lux at a glance
- Website
- justgetflux.com
- Category
- Software & Utilities › Hardware & Diagnostics
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, macOS, Web, Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
f.lux alternatives
Tools and sites you could use instead, ranked by how closely they match.
LightBulb adjusts screen gamma based on the time of day to reduce eye strain.
Open source
24 alternativesspacedesk extends a computer display to other devices over USB, Wi-Fi, or LAN, with viewers for mobile and Windows.
NVDA provides a screen reader that can be downloaded free of charge to make computers accessible to blind users.
Free
ParkControl displays and adjusts Windows CPU core parking and processor scheduling settings, with power automation features.
Deskreen shares a computer screen to devices through a web browser, including phones, tablets, and other computers.
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f.lux FAQ
How does f.lux change the screen?
It makes the display warm at night and like sunlight during the day, matching indoor lights after sunset.
What do I need to set up?
Tell f.lux what kind of lighting you have and where you live; it adjusts automatically afterward.
Can I use f.lux at work?
The site refers work users to the FAQ for IT administrators and notes a corporate edition with site licenses.
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