Versatile benchmarking utility to assess drive performance, offering rapid sequential/random speed tests, easy-to-read results, multilingual support, and more, all in a free package.




Check Flash is described as '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 will be able to manage your flash drives by performing different maintenance tests on it' and is an app in the os & utilities category. There are more than 10 alternatives to Check Flash for Windows, Linux, Mac and PortableApps.com. The best Check Flash alternative is CrystalDiskMark, which is both free and Open Source. Other great apps like Check Flash are HD Tune, H2testw, F3 and USBDeview.
Versatile benchmarking utility to assess drive performance, offering rapid sequential/random speed tests, easy-to-read results, multilingual support, and more, all in a free package.




HD Tune is a hard disk / SSD utility with many functions. It can be used to measure the drive's performance, scan for errors, check the health status (S.M.A.R.T.), securely erase all data and more!.




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 not be NTFS formatted, as it does not allow to test everything.
You can FAT32 format hard drive partitions large.



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.


Compare read and write speed of USB Flash drives: USBDeview is a small utility that lists all USB devices that currently connected to your computer, as well as all USB devices that you previously used.

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 native disk scanner.

Quickly spot-check any USB mass storage drive for fraudulent deliberately missing storage.

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


MediaTester can test any media (SD, microSD, USB thumbdrive, etc) and verify it stores the expected number of bytes. The testing method is similar to h2testw but MediaTester can detect fake or defective media much faster by performing quick reads as data is written.

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 fake sizes often seen on low quality USB pen drives.


Xbench was developed by Spiny Software to provide a comprehensive benchmarking solution for Mac OS X. Xbench is useful not only for comparing the relative speeds of two different Macintoshes, but also for optimizing performance on a single machine.

Tests USB Flash drives and Flash memory SD cards to determine if they are fake (not full capacity). Much quicker than H2testw.
