Best TreeSize Alternatives & Competitors in 2025

WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.

Key WinDirStat features:

Free and Open Source Comprehensive Visualization Multiple File Views Customizable Cleanup Actions

Open Source

WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.

Key WizTree features:

Speed User-Friendly Interface Detailed Visualization No Installation Required

SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.

Key SpaceSniffer features:

Visual Representation Freeware Portability Customizable Filters

WPMU offers WordPress Plugins, WordPress Themes, WordPress Multisite and BuddyPress Plugins and Themes.

Key WPMU DEV features:

Comprehensive Plugin Suite 24/7 Support Managed Hosting Ease of Use

MAMP is the abbreviation for Macintosh, Apache, MySQL, and PHP. It is a reliable application with its four components that allows you to access the local PHP server as well as the database server (SQL).

Key MAMP features:

Easy Installation Pre-configured Environment Convenient for Testing Multiple PHP Versions

Built for those who build the Web. The only browser made for developers.

Key Firefox Developer Edition features:

Developer Tools CSS Grid Inspector Privacy Protection Regular Updates

.NET is a free, cross-platform, open source developer platform for building many different types of applications.

Key .NET features:

Cross-Platform Performance Large Ecosystem Strong Community Support

Open Source

Baobab Disk Usage Analyzer is one of the light-weight disk analyzers that offers you a chance to view and monitor the disk usage & folder structure without any hassle.

Key Baobab Disk Usage Analyzer features:

User-Friendly Interface Integration with GNOME Real-Time Monitoring Cross-Platform Compatibility

DaisyDisk is a disk analyzer tool for OS X that visualizes hard disk usage and allows to free up hard disk space.

Key DaisyDisk features:

Visual Interface Speed User-Friendly Multiple Disk Support

paid Free Trial $9.99 / One-off

TypeScript allows developers to compile a superset of JavaScript to plain JavaScript on any browser, host, or operating system.

Key Typescript features:

Static Typing Improved Code Quality Enhanced IDE Support Compatibility

Open Source

CCleaner cleans, speeds up and frees up space on business endpoints.

Key CCleaner features:

Ease of Use Automated Cleaning System Optimization Customizable Cleaning

Centmin Mod is a LEMP stack shell menu based auto installer.

Key CentminMod features:

Performance Optimization Easy Installation Security Enhancements Built-in Tools

Keep your desktop organized with Fences. This is a simple software program that allows you to sort the tabs on your desktop and create files that are easily recognizable to you.

Key Fences features:

Organizational Efficiency Quick Access Aesthetically Pleasing Customization