Alternatives to H2testw for all platforms with any license



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  • F3

    F3 is an open source 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...

    Open Source Mac Windows Linux

  • File Read Test

    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.

    Open Source Mac Windows Linux

    No features added Add a feature
  • Macrorit Disk Scanner icon

    Macrorit Disk Scanner

    Macrorit Disk Scanner is a third party disk surface portable tool for scan disk bad sectors which provides you with better options and better performance than Windows...

    Free Windows

  • Quick Disk Test

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

    Open Source Mac Windows Linux

  • Check Flash icon

    Check Flash

    Check Flash is a tool for testing and formatting flash-drives. It can be used to clean eny evidence of activity on your flash drive by formatting it.With Check Flash you...

    Free Windows

  • sdspeed icon


    sdspeed is the only product that measure the read and write rate and testing every bit of your SD memory card you can trust with no "conflict of interest".

    Commercial Mac

    No features added Add a feature
  • 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

  • USB Memory Stick Tester

    USB Memory Stick Tester is a small application designed to help testing removable storage media (such as USB memory sticks) for defects.

    Open Source Windows

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  • Flash Memory Toolkit icon

    Flash Memory Toolkit

    Flash Memory Toolkit is a small package which has some very useful options like file recovery, benchmark and error scanning. Key features Supports flash memory...

    Freemium Windows

    • Discontinued The program seems to be no longer updated. Last version, 2.01, released in June 2011, can be still bought from the official website.

H2testw Comments

Good but slow!

about H2testw and RMPrepUSB · ·

H2TESTW fills up the drive with a test pattern and then reads all of it back. This makes it very slow. This is totally unnecessary for detecting fake flash devices. These have the memory multiply-mapped and so we do not need to detect bit errors, we just need to detect gross chunks of data being wrong. RMPrepUSB has a Quick Size Test which can test a fake 32GB Flash device in about 1 minute (good ones take 20-30 minutes). This gives very similar results to H2TESTW but is much quicker, especially if the flash memory is a fake. It does erase the contents though as it tests ALL memory (H2TESTW only tests the area which has no files).

Another alternative is FAKEFLASHTEST which is much easier to use. This has a similar 'fill-up with files' test to H2TESTW but again only takes a fraction of the time that H2TESTW takes (approx. 8 minutes for my fake 16GB USB pen which was actually 2GB) and detects a fake drive much more quickly than H2TESTW (it stops as soon as an error is found too!). It also has the same very quick test that RMPrepUSB has.

[Edited by steve6375, October 07]


Great software!

about H2testw · ·

Well, I have to add my ¢2 - this is a great software and saved me few times from paying for so called "64GB SDHC cards", which were fake. Great part of the software is that it writes unique data without repeating itself - this makes sure computer has to write/read every single bit to/from media. Compare it to files created by fsutil command - gigabytes are being moved between drives and partitions in seconds, because those files are empty.

Anyhow, thanks for great software!


Amazing program in my modest opinion, very useful to have i ...

Comment by Journeyman
about H2testw · Jun 2011 ·

Amazing program in my modest opinion, very useful to have in a "toolbox" pen