# f.lux

> Warms your screen's color at night to match the time of day

f.lux changes the color temperature of a computer display through the day: like sunlight in daytime, warmer after sunset and warmer still before bed. It works out the schedule from your location and usual wake time, and runs from a menu beside the system clock. The personal version is free on macOS, Linux and Windows. A paid Corporate Edition for Windows adds centrally managed installs for companies.

- **Category:** Desktop Utilities
- **Made by:** f.lux Software LLC
- **Website:** https://justgetflux.com
- **Runs on:** macOS, Windows, Linux
- **Facts last checked:** Oct 6, 2026

## Pricing

f.lux has a free plan. Paid plans start at $24 per device, one-time (Windows Corporate Edition).

- **Pricing model:** Free plan
- **Free plan:** The personal version is free on macOS and Linux, and free on Windows for personal use. Using it on a work computer needs your employer's knowledge and permission.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| Personal | $0 | The standard app for macOS, Windows and Linux, free for personal use and supported by voluntary contributions. |
| Corporate Edition | $24 per device, one-time; $12 per device after the first 10 | Windows-only build for companies: automated installs, automatic updates and home automation disabled, and one year of updates included. |

Read from https://justgetflux.com/corp/ on Oct 6, 2026. Prices change, so confirm with f.lux before buying.

## Ways to pay less

- **Volume quotes from 500 seats** (Other savings): The corporate page says there are no discounts below 500 seats; for larger quantities the vendor quotes discounted rates and accepts purchase orders. Source: https://justgetflux.com/corp/

## Key features

- **Automatic color temperature:** Shifts the display's color temperature with the time of day: 6500K in daytime by default and warmer after sunset, timed from your location.
- **Bedtime tied to your wake time:** A Bedtime setting removes as much alerting light as possible before sleep and moves with the wake time you set. Options cover sleeping in on weekends and an earlier bedtime for teens.
- **Presets and custom colors:** Presets include Recommended colors, Classic f.lux and Working late, and Custom colors lets you pick a color temperature for each part of the day.
- **Darkroom and Movie mode:** Darkroom removes all blue and green light and inverts colors. Movie mode lasts 2.5 hours and keeps colors and shadow detail with a warmer tone.
- **Disable when color matters:** Can be turned off for an hour, until sunrise, or whenever a chosen app is active, which the vendor suggests for color-critical work.
- **Philips Hue control:** The Windows version can drive Philips Hue White and Color Ambiance lights so that room lighting follows the same schedule as the screen.

## Good for

- People who use a computer in the evening and want a warmer screen
- Users who want the change scheduled automatically from location and wake time
- Companies that need a centrally installed build for Windows PCs

## Worth knowing

- The Corporate Edition is for Windows only and in English only, at $24 per device for the first 10 devices and $12 for each one after.
- The vendor treats company-recommended or IT-managed use as commercial use that needs the paid corporate license.
- It is not designed for advanced color work; the vendor suggests disabling it while using apps such as Photoshop.
- Mobile support is limited: the iOS version needs a jailbroken device and the Android build needs a rooted phone.

## Works with

Philips Hue

**Tags:** Display control, Menu bar app

## Alternatives

- [BetterDisplay](https://toolgpa.com/tools/betterdisplay): Display scaling, brightness and DDC control for Mac. [Compare](https://toolgpa.com/compare/betterdisplay-vs-f-lux)
- [MonitorControl](https://toolgpa.com/tools/monitorcontrol): Free, open-source brightness and volume control for Mac displays. [Compare](https://toolgpa.com/compare/f-lux-vs-monitorcontrol)
- [Twinkle Tray](https://toolgpa.com/tools/twinkle-tray): Free brightness sliders for external monitors on Windows. [Compare](https://toolgpa.com/compare/f-lux-vs-twinkle-tray)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 6, 2026:

- https://justgetflux.com/
- https://justgetflux.com/corp/
- https://justgetflux.com/faq.html
- https://justgetflux.com/news/pages/macquickstart/
- https://justgetflux.com/lighting/
- https://justgetflux.com/linux.html
- https://justgetflux.com/ios.html
- https://justgetflux.com/android/

Page: https://toolgpa.com/tools/f-lux
Listed by ToolGPA (toolgpa.com).