Alternative & Comparison · Disk space analyzer
Ultra Explorer vs WinDirStat
Ultra Explorer Pro analyzes local disks and cloud storages in six views, then lets you act from the same explorer.
Ultra Explorer’s Space Analysis (Pro) scans local disks and cloud storages and shows them as a sunburst, treemap, pack or three tree layouts. You can move or delete what you find right away in the dual-pane explorer. WinDirStat analyzes local Windows drives only.
Ultra Explorer
Free, Pro or Lifetime
Free plan includes full dual-pane file management across 40+ clouds, durable transfers, and Docker container. Pro upgrade unlocks Disk Space Analyzer, Synchronizations, and Global Search.
WinDirStat
Free, open source (GPL)
Space analysis for local disks and clouds.
Feature-by-Feature Matrix
| Feature / Capability | Ultra Explorer | WinDirStat |
|---|---|---|
| Dual-pane explorer Source and destination shown side by side | Included in Free | No |
| Search across several storages at once Any number of storages in parallel, with filters and presets | Pro module | No |
| Disk space analysis Local disks and clouds, largest files, breakdown by type | Pro module | Local drives only |
| Google Drive, OneDrive, Dropbox… Consumer cloud drives in the same explorer | Included in Free | No |
| Self-hosted web version For a Synology, QNAP, TrueNAS or Unraid NAS | Included in Free | No |
| Visualizations Ways to see where space goes | Sunburst, Treemap, Pack, Tree | Tree, treemap, extensions |
| Platforms Desktop and server | macOS, Windows, Linux, Docker | Windows |
Why switch from WinDirStat to Ultra Explorer
- 1 Local + cloud
Clouds included
Analyze Google Drive, OneDrive, S3 or a NAS the same way as a local disk.
- 2 Six views
Six views
Sunburst, treemap, pack and three tree layouts to explore where space goes.
- 3 Explorer included
Act right away
Move or delete what you find from the dual-pane explorer.
Under the Hood Architecture
WinDirStat vs Ultra Explorer Architecture
WinDirStat Architecture
Native Windows app that scans local drives and folders.
Ultra Explorer Rust & Svelte 5
Rust core driving a bundled rclone, shared by a Tauri desktop app (macOS, Windows, Linux) and a self-hosted web server (Docker). Transfers, history and synchronization jobs are stored in SQLite.
Technical Verdict Ultra Explorer extends space analysis to your clouds and lets you act on it.
Honest Pros & Cons
WinDirStatFree, open source (GPL)
WinDirStat Limitations
- Windows only
- Local and mounted drives only
- Analysis only: no transfers between storages
Ultra ExplorerRecommended
Ultra Explorer Strengths
- Find a file without knowing where it is: one search across all your storages in parallel (Google Drive, OneDrive, NAS, local disks…)
- Pro: search across all your storages, space analysis and scheduled synchronizations
- Runs on macOS, Windows and Linux
- Two storages side by side, with tabs and drag and drop
Trade-offs & Considerations
- Search, space analysis and synchronizations require Pro
When to choose Ultra Explorer
Choose Ultra Explorer if your space is spread across clouds, or if you want to act on it from the same tool. Space Analysis requires Pro.
Frequently Asked Questions: Ultra Explorer vs WinDirStat
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Install Ultra Explorer and add your storages: sign in to your clouds or enter your server details. If you already use rclone, import your rclone.conf in Settings. Your files stay where they are; Ultra Explorer works directly with your existing accounts.
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Yes. Search (Pro) scans every storage you pick in parallel, for example Google Drive, OneDrive, your NAS and your computer, and lists every match in one place. Filter by name, extension, modification date or size, then open or move the file straight from the results.
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Free covers the dual-pane explorer, every storage, transfers and folder totals. Pro (monthly, yearly or lifetime) adds multi-storage search, space analysis and scheduled synchronizations.
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Yes. The Docker image runs the web version on your server or NAS. You sign in from a browser, and the web app can be installed on a phone.
Try Ultra Explorer for free
Download Ultra Explorer for macOS, Windows, Linux, or deploy on your NAS via Docker.