F3 icon
F3 icon

F3

 15 likes

F3 is an open source command-line tool that assesses the real capacity of USB sticks and other media. An advantage over other tools is, that it does not need administrative rights to access the device.

F3 screenshot 1

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Platforms

  • Mac  Through Homebrew
  • Windows  With Cygwin
  • Linux
F3 screenshot 1
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Recent activities

  • HearthCardCheck icon
    swat777 added F3 as alternative to HearthCardCheck
  • Anarquest liked F3
  • FeUser updated F3
  • Third Opinion reviewed F3  

    Awesome! Well, except for mac users ignorant of command line :D Gee, mac is unix, too! On linux my weapon of choice for testing sd cards, sticks (usually contain cards!) and even SSD/NVMe. However, despite constantly showing the speed during tests and at the end, it would be nice if it would show also the speed per each h2w-block: Thus one could see when a device starts throttling. Perhaps in some future version?^^ *pretty-please* Havent seen corrupt cards/stick in years now but speed is more...

  • FeUser added Lightweight as a feature to F3
  • FeUser added Ad-free as a feature to F3
  • FeUser added Works Offline as a feature to F3
  • FeUser replied to a comment / review on F3
  • FeUser rated F3
  • FeUser liked F3

F3 information

AlternativeTo Categories

OS & Utilities, System & Hardware

GitHub repository

  •  3,422 Stars
  •  178 Forks
  •  45 Open Issues
  •   Updated  
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Our users have written 2 comments and reviews about F3, and it has gotten 15 likes

F3 was added to AlternativeTo by digirati on and this page was last updated .

Comments and Reviews

   
Top Positive Comment
Third Opinion
0

Awesome! Well, except for mac users ignorant of command line :D Gee, mac is unix, too! On linux my weapon of choice for testing sd cards, sticks (usually contain cards!) and even SSD/NVMe. However, despite constantly showing the speed during tests and at the end, it would be nice if it would show also the speed per each h2w-block: Thus one could see when a device starts throttling. Perhaps in some future version?^^ *pretty-please* Havent seen corrupt cards/stick in years now but speed is more and more a serious issue (and false advertising thereof). Until then one can always fall back to gnome disks and benchmark accordingly the whole 100% and get a nice graph, of course...

Guest
-3

It says it's available for Mac but this is misleading. You really need to know how to run commands via terminal, and there's no DMG file at all. You need to be quite savvy to run this on your Mac, I was unable to run it at all.

Truc
Replying to @Guest

You do not know how to use your computer, just get a smartphone ,maybe ? :s

FeUser
Replying to @Guest

It is using homebrew. For users familiar with CLI apps and command line tools.

Review from a new or low-activity account — shown here, but not counted in the app rating.

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Install from the command line

  • brew install f3

Be careful what you paste into a terminal. Check what a command installs before running it.

What is F3?

F3 is an open source command-line tool that assesses the real capacity of USB sticks and other media. An advantage over other tools is, that it does not need administrative rights to access the device.