WizTree — The Complete Guide: Find the Huge Files Filling Your Disk in Seconds

WizTree is a disk-space analyser that reads the file table of NTFS drives directly, so it scans an entire drive in a matter of seconds. Anyone who runs simulations knows the problem: mesh and result files of tens of gigabytes pile up in old folders, and the disk fills up without anyone noticing.

WizTree

Antibody Software

An extremely fast disk-space analyser — finds huge model, mesh and result files in seconds.

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What you get

Very fast scanning — reads the NTFS file table directly.
Largest-first list — folders and files sorted by size.
Treemap — a visual picture of what is occupying the disk.
Duplicate finder — identical files you can safely remove.
CSV export — the file list for analysis in a spreadsheet or a script.

Who may use it for free

WizTree is free for personal use only. Commercial use, including in an engineering office, requires buying a Supporter Code, and organisations can buy an Enterprise licence for unlimited use. If you need a free tool for work, look at an open-source alternative instead.

Related tools

An open-source disk-usage alternative — WinDirStat. A similar tool launched from the Explorer menu — TreeSize Free. For instant file search by name — Everything.