Alternatives to F3 for all platforms with Free License

  • H2testw

    Data integrity test for USB sticks and other media An advantage over other tools is, that it does not need administrative rights to access the device - but it should...

    Free Windows

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    H2testw icon
  • Quick Disk Test

    Fills a disk with test data and verifies that it can be read back without errors.

    Free Open Source Mac Windows Linux

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    Quick Disk Test icon
  • USB Flash Drive Tester

    Flash card/drive tester allows testing of any removable media including SD, MMC, CF, USB flash pen drives for bad or unstable sectors. Especially useful for testing for...

    Free Windows

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  • CapacityTester

    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...

    Free Open Source Linux

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Platforms

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