Software Alternatives, Accelerators & Startups

f.lux VS Czkawka

Compare f.lux VS Czkawka and see what are their differences

f.lux logo f.lux

f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.

Czkawka logo Czkawka

Multi functional app to find duplicates, empty folders, similar images etc.
  • f.lux Landing page
    Landing page //
    2021-09-18
  • Czkawka Landing page
    Landing page //
    2023-09-28

f.lux videos

F.lux Review - Should You Really Use It? [MY EXPERIENCE]

More videos:

  • Review - Does F.lux (FLUX) Really Work? Blue Light Filter test W/ Ghetto Science Applied.
  • Demo - F.lux - Review & Demo

Czkawka videos

Cleaning up Duplicate Files And Images with AI - Czkawka

More videos:

  • Review - CZKAWKA - co ją wywołuje i jak się jej pozbyć?

Category Popularity

0-100% (relative to f.lux and Czkawka)
Work Management
100 100%
0% 0
Hard Disk Usage
0 0%
100% 100
Color Temperature Adjuster
Hard Disk Management
0 0%
100% 100

User comments

Share your experience with using f.lux and Czkawka. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, f.lux should be more popular than Czkawka. It has been mentiond 347 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

f.lux mentions (347)

  • Modos Paper Monitor Pre-Launch on Crowd Supply
    Give Flux a try. https://justgetflux.com/ It did it before night mode and does it far better. ;). - Source: Hacker News / 14 days ago
  • Tools that keep me productive
    For those evenings where I'm in front of the computer, f.lux is a must. Like some wise person said, "Be kind to your eyeballs". macOS's Nightshift kind of works, but f.lux destroys it. - Source: dev.to / 29 days ago
  • Ultra Librarian Joins Flux to Take the Hard Out of Hardware
    Having never heard of Ultra Librarian, I thought this was somehow related to https://justgetflux.com/ and that they'd made a switch from doing color changing to hardware. - Source: Hacker News / 3 months ago
  • Is it just me who dislikes the winter update with the change of colors?
    Reshade might help with the color tones. I normally use f.lux for Windows, but I don't know how much it might help. Could be worth trying, though. Source: 6 months ago
  • Create a shortcut for even lower phone brightness
    This is good advice, but I prefer something that automatically dims and reduces blue light for me. That qay I don't have ro remember. f.lux on Windows and Mac, and Twilight on Android, are what work for me. https://justgetflux.com/ https://play.google.com/store/apps/details?id=com.urbandroid.... - Source: Hacker News / 7 months ago
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Czkawka mentions (171)

  • Tools to deduplicate files
    Https://github.com/qarmin/czkawka by far the best of anything iv tried. Source: 7 months ago
  • fdupes: Identify or Delete Duplicate Files
    I've used Czkawka (https://github.com/qarmin/czkawka) because it does Lanczos-based image duplicate detection, which makes it more practical for me. - Source: Hacker News / 7 months ago
  • AllDup suddenly taking forever to process/delete selections
    Maybe it's a setting you made or the files, not sure. You can try another software czkawka to see if you get better results with it. Source: 8 months ago
  • Is there a file duplicate finder that works with animated jpegxl-gif?
    For static images I used https://github.com/qarmin/czkawka and it works well enough. I think. But when I used it on a folder with gifs and their jxl conversions, it shows nothing. SURELY this could not be user error, rrrright? Source: 9 months ago
  • PhotoPrism: Browse Your Life in Pictures
    I used to use DupeGuru which has some photo-specific dupe detection where you can fuzzy match image dupes based on content: https://dupeguru.voltaicideas.net/ But I switched over to czkawka, which has a better interface for comparing files, and seems to be a bit faster: https://github.com/qarmin/czkawka. - Source: Hacker News / 11 months ago
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What are some alternatives?

When comparing f.lux and Czkawka, you can also consider the following products

CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder

dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.

Redshift Color Temperature Adjuster - Redshift adjusts the color temperature according to the position of the sun.

Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.

LightBulb - Background application that adjusts screen gamma, making the colors appear warmer at night...

AllDup - AllDup is a freeware tool for searching and removing file duplicates on your Windows computer.