Alternatives to Space Investigator:

For Space Investigator there are 10 alternative programs. Free: 7, paid: 3.

YuDisk

YuDisk is a disk usage viewer for Windows that helps inspect how local drive space is being used.

Price: Free Size: 1.65 MB Version: 1.00 OS: Windows

Directory Report — Free Download. Disk analysis, duplicate search

Directory Report is a file management utility designed to scan internal and external storage devices, locate duplicate files, perform batch renaming operations, identify large files and folders, and generate printed directory listings.

Price: Free Size: 9.7 MB Version: 80 OS: Windows

WinCleanCat

WinCleanCat is a free and open-source utility designed to free up disk space on Windows 10 and 11.

Price: Free Size: 66.1 MB Version: 1.0.0 OS: Windows

WhaleClean

WhaleClean is an application for Windows 10 and 11 that groups six system cleaning and maintenance tools into a single interface.

Price: Free Size: 315 MB Version: 1.0 OS: Windows

DaisyDisk

This software examines system storage and graphically represents space usage.

Price: Free Size: 8.2 MB Version: 4.32 OS: MacOS

CleanMyMac

CleanMyMac is a software application for Mac designed to manage system maintenance, free up disk space, remove unwanted files, and improve overall computer performance.

Price: $105 Size: 125.9 MB Version: 4.15.14 OS: MacOS

DuoBolt

DuoBolt is a high-performance desktop application for identifying and removing duplicate files with absolute precision and consistency.

Price: $29.99 Size: 95.8 MB Version: 1.3.6 OS: Windows, Linux, MacOS

FileFusion

FileFusion is a utility for Windows systems that locates and merges duplicate files on NTFS drives.

Price: $29.95 Size: 31.3 MB Version: 2026.8 OS: Windows

TreeMap

TreeMap is a disk space analysis application that displays storage usage on local drives, networks, and removable devices through visual representation and detailed file listing.

Price: Free Size: 136.7 MB Version: 1.0 OS: Windows