Disk and USB tools
Tools that write bootable USB drives and show what is filling a disk.
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13 results
balenaEtcher
Writes an OS image to a USB stick or SD card, verifies every byte, and refuses to target your hard drive.
CrystalDiskInfo
Reads the health data your drives already record and tells you plainly whether one is dying.
CrystalDiskMark
The standard Windows disk benchmark, measuring sequential and random read and write speeds in a few clicks.
GParted
The partition editor for Linux, usually run from its own live USB so it can resize the disk it is not booted from.
ncdu
A disk usage analyser with a text interface, built for finding what is filling a remote server you can only reach over SSH.
smartmontools
Reads the SMART health data built into disks and runs self-tests, giving advance warning before a drive fails.
SpaceSniffer
Shows disk usage as a treemap you click into, so the biggest folders and files are immediately obvious.
TestDisk & PhotoRec
Recovers lost partitions, makes non-booting disks bootable again, and undeletes files from FAT, exFAT, NTFS and ext filesystems.
TreeSize Free
Shows which folders are eating a Windows drive, ranked largest first, without a scan that takes all afternoon.
WinDirStat
Draws your whole drive as a treemap, so a single 40 GB file is a huge rectangle you cannot miss.
Rufus
Writes a bootable USB drive from an ISO, and can strip the Windows 11 install requirements while doing it.
Ventoy
Prepare a USB stick once, then boot any ISO by copying the file onto it.
WizTree
Finds what is eating a Windows disk in seconds by reading the NTFS master file table directly.
