Alternatives to ValiDrive
A free GRC utility that checks whether a USB drive really holds its advertised capacity. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
ValiDrive
A free GRC utility that checks whether a USB drive really holds its advertised capacity.
Replacements
Listings that take over the same core job as ValiDrive.
f3
A command-line tool that tests flash drives and memory cards for fake capacity and real performance.
f3 is open source and runs on Linux from the command line, writing and reading back the whole device, so tests take longer than a spot-check but also report real speeds.
Similar software
Related functionality, not a direct replacement.
HDDScan
A free Windows utility for testing hard drives and SSDs, reading SMART data and running surface tests.
CrystalDiskInfo
Reads the health data your drives already record and tells you plainly whether one is dying.
SD Memory Card Formatter
The SD Association's official utility for formatting SD, SDHC, SDXC and SDUC memory cards to specification.
CrystalDiskMark
The standard Windows disk benchmark, measuring sequential and random read and write speeds in a few clicks.
SpinRite
A bootable maintenance and data recovery utility for hard drives and other mass-storage devices, from GRC.
ImageUSB
A free PassMark utility that writes an image to many USB flash drives at the same time.
