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.


H2testw is not available for Linux but there are a few alternatives that runs on Linux with similar functionality. The best Linux alternative is F3, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to H2testw and four of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to H2testw are CapacityTester, Quick Disk Test and File Read Test.
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.


Tool to test a USB drive or memory card to find out if it's a fake. The tool performs a simple test to determine if the full capacity is usable or not. All it does is fill the volume with test data and verify if the data on the volume is correct.


Quick Disk Test fills a disk with test data and verifies that it can be read back without errors.


Reads disk files or directories and stops on the first read error.
There are two versions: a command-line perl script and a Java GUI.




it's open source and cross-platform