f.lux Blue Light Filters

Users recommend f.lux and alternatives like redshift, Night Shift, and Night Light for adjusting screen color temperature to reduce blue light at night, improving eye comfort and sleep. Discussions cover personal experiences, effectiveness, and built-in OS features.

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Keywords

AFAIK F.lux f.lux F.Lux IMO HN stereopsis.com MacBook jonls.dk B000USRG90 night flux light blue colors shift screen mode day bed

Sample Comments

quadlock Dec 12, 2012 View on HN

try out f.lux. it's been a life saver for me.

OWaz Oct 10, 2013 View on HN

I second f.lux as I've been using it for a few years. Just try it for a while.

dSebastien Nov 8, 2025 View on HN

Reminds me of f.lux: https://justgetflux.com/

blackearl Nov 20, 2020 View on HN

If you don't use f.lux already give it a shot. I usually have it set to warm colors at all times but there's some cool options to set it by time of day as well

quickthrower2 Apr 30, 2018 View on HN

Thanks for the F.lux recommendation

URfejk Dec 13, 2020 View on HN

Use f.lux, redshift or some other alternative.You can thank me latter.

revelation Sep 19, 2015 View on HN

You should try f.lux [1], it will drive you up a wall.[1]: https://justgetflux.com/

mercer Feb 7, 2014 View on HN

I've found that f.lux really helps with that. For iOS you need a jailbroken device though.

seeekr Apr 30, 2016 View on HN

Just now discovered "Night Shift" mode on iPad, which lead to looking for something similar for my MacBook and the discovery of f.lux. So much more comfortable to look at the screen at night!

Inufu Apr 22, 2013 View on HN

If f.lux doesn't work properly, give redshift a try. Does the exact same thing and works perfectly for me.