f3brew

test real flash memory capacity

Install

All systems
curl cmd.cat/f3brew.sh
Debian Debian
apt-get install f3
Ubuntu
apt-get install f3
image/svg+xml Kali Linux
apt-get install f3
Fedora
dnf install f3
Windows (WSL2)
sudo apt-get update sudo apt-get install f3
OS X
brew install f3
Raspbian
apt-get install f3
Dockerfile
dockerfile.run/f3brew

f3

test real flash memory capacity

F3 (Fight Flash Fraud or Fight Fake Flash) tests the full capacity of a flash card (flash drive, flash disk, pendrive). F3 writes to the card and then checks if can read it. It will assure you have not been bought a card with a smaller capacity than stated. Note that the main goal of F3 is not to fix your removable media. However, there are resources to mark the invalid areas. This package provides these executables: f3write, f3read, f3brew, f3fix and f3probe.