# windirstat/windirstat

WinDirStat is a disk usage statistics viewer and cleanup tool for Microsoft Windows

Repository: https://github.com/windirstat/windirstat
Canonical: https://ross.abutalabs.com/products/windirstat
Homepage: https://windirstat.net
Language: C++
License: GPL-2.0
License Family: copyleft
Topics: disk-space-analyzer, treemap, treemaps, windows, disk-usage-analyzer, cleanup, duplicate-detection
Last push: 2026-08-20T16:25:33+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 96, longevity 100
- inputs: {"age_days": 3803, "days_push": 13, "days_rel": 31, "gap_med": 28.5, "n_releases_24m": 11}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3923, forks 237 (observed 2026-08-28T04:08:29.769621+00:00)

## What it is
WinDirStat is a free, open-source disk usage statistics viewer and cleanup tool for Microsoft Windows. It scans drives and folders and visualizes storage usage through sortable directory lists, extension statistics, and an interactive treemap, with built-in search, duplicate detection, and cleanup actions.

## Use cases
- find out what is taking up disk space on my Windows PC
- visualize folder sizes as a treemap
- find and delete large files
- detect duplicate files by content hash
- clean up disk space and empty the recycle bin
- monitor file system changes in a folder
- export a disk scan report to CSV

## When to choose
- you need a visual, interactive overview of disk usage on Windows
- you want built-in duplicate detection and cleanup actions in one tool
- you need fast NTFS scanning with multithreading and elevated privileges
- you want a portable, free, open-source disk analyzer

## When to avoid
- you are on Linux or macOS (use tools like ncdu, KDirStat, or GrandPerspective instead)
- you need automated, scriptable disk reporting without a GUI
- you need network drive or cloud storage quota analysis as a primary feature

## Facets
- artifact type: application
- maturity: active
- function: file-system, search-engine, data-visualization, developer-tools
- domain: files, windows, developer-tools
- platform: windows
- tags: disk-usage-analyzer, treemap, disk-cleanup, duplicate-file-detection, storage-analysis, cpp, desktop

## Member repositories
- windirstat/windirstat (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:29.769621+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:24:45.641747+00:00, confidence not recorded.
  - readme: https://github.com/windirstat/windirstat (fetched 2026-08-28T04:08:29.769621+00:00, sha 53d6231739b4)
  - homepage: https://windirstat.net (fetched 2026-08-29T09:18:43.016326+00:00, sha 7dc91dcf556f)
- Data as of 2026-08-30T08:39:29.467469+00:00.