CrystalDiskMark

CrystalDiskMark is a small HDD benchmark utility for your hard drive that enable you to rapidly measure sequential and random read/write speeds.

Free Open Source Windows PortableApps.com

HD Tune

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.)...

Freemium $ $ $ Windows

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

USBDeview

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...

Free Windows

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

Xbench

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...

Free Mac

FakeFlashTest

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

Free Windows

FlashBench (USB Flash Benchmark)

test usb speed

Free Windows

HD Speed

Measures both sustained and burst data transfer rates of your hard disks, cd/dvd-roms, flash cards/sticks, floppys, etc. Realtime graphical display.

Free Windows

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

diglloydTools DiskTester

DiskTester is a 64-bit application which tests drive performance and reliability for single volumes or RAID. Some highlights: * The fill-volume command is your smart...

Commercial Mac

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...

• Discontinued The program seems to be no longer updated.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.

Freemium Windows

Quick Disk Test

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

• Discontinued Project seems to be dead. Page not found on Sourceforge.

Free Open Source Mac Windows Linux

SpeedOut

Really easy to use application: just one button 2 go. SpeedOut is an application, created for calculating USB drive (stick or external HDD) read/write speed. It is using...

Free Windows

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