The best Duplicate File Finder alternative to TreeSize is WinDirStat, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to TreeSize and 18 are Duplicate File Finders so hopefully you can find a suitable replacement. Other interesting Duplicate File Finder alternatives to TreeSize are WizTree, SD Maid SE, Diskaroo and WinExt Free.
Comprehensive disk analysis tool offering treemap visualizations to identify large files, duplicate detection, and versatile cleanup actions. Operates offline, ad-free, and open-source, it runs portably on Windows without registration, providing a lightweight solution to manage disk storage.
Germany
EU
Comprehensive disk usage analyzer providing ultra-fast insight into space consumption by directly reading NTFS file systems. Identify top space hogs, sort content by size, and enjoy features like portability, offline access, dark mode, and no registration needs. Exclusive to NTFS drives.
Australia
SD Maid SE (aka SD Maid 2) is a file management tool for Android that specialises in maintenance. Its core purpose is freeing up space and removing unwanted data.
GermanyEU
Visualizes file and folder sizes using treemaps for macOS and Windows, integrates duplicate detection, smart filters, drill-in navigation with breadcrumbs, batch file deletion via a collector tray, and ensures safe cleanup with review options before removal.
United States
Powerful Win utilities: fix registry, clean junk, protect privacy, optimize system, quick launch, find duplicates, folder size, see more recent resources, activity monitor, batch operation, synchronization, disable context menus, skip UAC, trace file.
United States
Xinorbis is a completely FREE, powerful Windows-based data storage analyser for single users or network administrators. Provides an instant visual display of the contents of a hard disk, single or multiple directories. Output reports to XML, CSV, HTML or plain ASCII.
United Kingdom
Zenovix Storage Manager is a Windows storage management app designed to help users understand, clean, and organise their disk space.
United Kingdom
Total Directory Report - is a professional application designed to allow you viewing your folders, disks or FTP servers as a set of analytical reports or detailed ordered lists in HTML, CSV or PDF formats.
This free-for-personal-use software utility analyses storage disk usage, and then presents the gathered information in graphical format(s) viz. a directory tree, or a pie chart.
Disk Recon is a disk space utility that reveals all the crucial information that you need to find out where all your disk space has gone and how you can recover it.
NetherlandsEU
Disk Space Fan Pro is a is not only a duplicate file finder, but also a powerful disk space analysis tool for Windows. It helps you to free up disk space by quickly finding and deleting big, useless files.
A native disk-space analyzer for Windows. It maps your entire drive into an interactive sunburst chart in seconds, so you can see exactly what's eating your storage and reclaim gigabytes in one click.
Algeria
