Free browser-side tools

Inspect folders in your browser before changing anything on disk.

These tools run locally in your browser on folders you select. Nothing is uploaded or modified. When you want to delete duplicates, batch-rename files, or clean up clutter on your drive, use the desktop app.

Storage triage

Storage Autopsy: Windows Folder Health Check

Run a local, read-only browser check for duplicate files, junk candidates, folder hotspots, and file types. Nothing is uploaded or changed.

Local reportNo file uploadPreview before apply
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Duplicate cleanup

Duplicate Folder Scanner Lite

Exact-match groups, image-similarity hints, and recoverable-byte totals. Local browser scan with no upload.

Local browser scanExact + similarRecoverable bytes
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Decision support

Smart Duplicate Keeper Assistant

Apply keep-newest, keep-oldest, keep-largest, keep-highest-resolution, or keep-shortest-path logic to duplicate groups before you commit.

Keep rulesReasoningSafer reviews
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Preview-first organization

Batch Rename Previewer

Preview prefix, suffix, replace, numbering, and slug transforms without modifying files. Export CSV or PowerShell when you are satisfied with the pattern.

Live previewConflict hintsCSV + PowerShell
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Fast folder triage

Empty / 0-Byte / Junk File Finder

Classify common cleanup clutter locally in the browser so you can see what is safe to remove.

Zero-byte filesEmpty foldersTemp clutter
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Disk triage

Folder Size Scanner Lite

Pick a local folder and see which immediate child directories consume the most space. Browser walk, not NTFS MFT, but fast enough for hotspot triage.

Top folders by sizeLocal browser scanNo upload
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Photo privacy utility

Photo Metadata Privacy Checker

Scan local photos for common EXIF privacy leaks and download stripped copies client-side when the browser can safely re-export them.

EXIF warningsGPS flagsClient-side strip
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Storage triage

Find what is taking space in a Windows folder before you touch a file.

Run a local, read-only browser check for duplicate files, junk candidates, folder hotspots, and file types. Nothing is uploaded or changed.

Local reportNo file uploadPreview before apply

What this tool does

  • Brings duplicate, junk, folder-size, and file-type signals together in one report.
  • Counts a file only once when duplicate and junk findings overlap.
  • Exports an aggregate-only report without filenames, paths, or file contents.

Runs locally and changes nothing

See what is taking space before you touch a file.

Storage Autopsy reads the folder you select in your browser, then organizes the findings into a report you can act on. Nothing is uploaded and nothing is changed.

Local processing

Run a folder health check

Choose one folder. The browser reads file names, sizes, types, and local duplicate candidates on this device.

Ready to inspect

Your browser is using the directory-selection fallback. The scan remains local, but empty folders cannot be detected.

How the report works

See the findings before you clean up.

The browser handles the first inspection locally. Use Dupe Zappa for guarded deletes, moves, rename rules, and undo history.

What it checks

File sizes, top-level folder hotspots, file types, exact duplicate candidates, lightweight image similarity, and conservative junk patterns.

What "recoverable" means

It is a review estimate, not an instruction to delete. Overlapping duplicate and junk paths count once. Use a preview-first workflow for any changes.

Know the browser limit

Native directory access can see empty folders. Browser fallback can inspect readable files but cannot verify empty directories.

FAQ

Before you run the check.

Does Storage Autopsy upload my files?

No. The folder listing, duplicate pass, and report are processed in your browser. File names, paths, and file contents are not sent to Dupe Zappa servers.

Can it delete or change anything?

No. Storage Autopsy is a read-only inspection tool. It only reports possible cleanup candidates. Use Dupe Zappa on Windows when you want preview-first deletes, moves, renames, and undo history.

What does potentially recoverable space mean?

It combines the sizes of duplicate and conservative junk candidates, counting an overlapping file once. Treat it as an estimate for review, not a recommendation to delete everything shown.

Can I scan an entire drive?

You can select a mounted drive or a large folder, but browser folder walks can take time and depend on browser permissions. For very large Windows volumes, Dupe Zappa provides the deeper desktop scan and progress controls.

Why are empty folders sometimes not counted?

Native directory access can inspect empty folders. If your browser uses the fallback directory picker, it exposes files but not empty directories, so the report marks that value as unavailable instead of treating it as zero.