
Luxen: Light Meter
Measure Brightness in Lux
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Free
About
The brightness of a room can feel obvious, but small differences are often difficult to judge. Move closer to a window, change a lamp, turn on a monitor - and the lighting around you changes. Luxen turns those changes into readable lux measurements, giving you a simple way to explore and compare your surroundings.
Point. Measure. Understand.
Open the meter, start a session, and watch the reading change in real time. The main lux value gives you an immediate reference, while the live graph shows how illumination behaves throughout the measurement.
A Clear Picture of Every Session
Luxen records the important numbers automatically:
- Current illumination
- Minimum and maximum readings
- Average level
- Measurement duration
- Date and time
A simple Low / Good / High indicator also provides a quick interpretation of the current environment.
Catch the Moment
Use Hold when you want to freeze a reading. It's useful when checking a particular spot, moving between locations, or simply recording a value before continuing.
Make Measurements Your Own
Different devices and environments can produce different readings. The built-in correction offset lets you apply a calibration adjustment using a reference value.
Turn Measurements Into a Record
Save sessions and revisit them whenever you want. Add a note to remember where the measurement was taken or what you were testing. Compare saved results to discover how lighting changes between spaces and setups.
From a desk that feels too dim to a creative setup that needs consistent illumination, Luxen gives you a practical way to investigate the light around you.
No account is required. No internet connection is needed. Your measurements stay on your device and are processed locally.
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What's New in Luxen
1.0
September 22, 2026





