WinDirStat is a disk usage statistics viewer and cleanup tool for Windows. It provides a visual overview of your storage, helping you identify large files and manage disk space efficiently.

📂 Reads the entire directory tree and displays usage statistics

📊 Treemap visualization shows file sizes and distribution instantly

🗂️ Directory list sorted by file/subtree size for quick navigation

🧩 Extension list with statistics about file types

🖥️ Windows‑native, lightweight, and easy to use

🛠️ Built‑in cleanup actions to delete or manage files directly

🤝 Free, open‑source project trusted by millions of users

Perfect for: Windows users who want a clear, visual way to understand and reclaim disk space.