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Duplicates & similar photos
rsk.dedupe

Detect duplicate files and clean them up with complete control

rsk.dedupe separates byte-identical files from similar photo variants, makes every decision traceable, and protects your data with previews, quarantine, and recovery.

For Windows 10/11 (64-bit) · No account · No subscription
rsk.dedupeEN · Windows
Duplicates & similar photos

Recover storage space without putting important files at risk

Duplicate downloads, photo copies, and scattered versions waste space and clarity. rsk.dedupe clearly separates files that are truly identical from those that merely look similar.

You decide using previews, metadata, and an explainable recommendation. Nothing is permanently deleted automatically.

How it works

Choose folders, review groups, and clean up safely

Choose folders or drives and scan for exact duplicates or similar photos.

1. Define the scan

Filter file types, sizes, and root folders, or save the setup as a reusable profile.

2. Compare results

Review groups, side-by-side images, metadata, confidence, and the reasons behind each recommendation.

3. Clean up with control

Confirm the cleanup preview and move selected files into the application’s quarantine first.

rsk.dedupeEN · Windows
What you can get done

Exact matches and similar photos remain clearly separated

SHA-256 confirms byte-identical files. Separate image analysis finds similar JPEG, PNG, WEBP, BMP, and TIFF photos with adjustable tolerance.

Features

Detect duplicates, understand decisions, and clean up files safely

8feature areas

From fast SHA-256 scanning to controlled quarantine, every step remains traceable and under your control.

01Exact duplicate detection
  • Verify in stages using size and SHA-256.
  • Scan large sets in parallel with cancellation and a persistent fingerprint cache.
  • Keep exact image duplicates out of the similar-photo results.
02Similar photos
  • Compare JPEG, PNG, WEBP, BMP, and TIFF using dHash.
  • Adjust similarity tolerance clearly.
  • Compare two images, metadata, and confidence side by side.
03Scan scope and filters
  • Choose folders, drives, and UNC paths with protected defaults.
  • Filter by file type, custom patterns, and minimum size.
  • Optionally compare only across root folders and save scan profiles.
04Explainable recommendations
  • Evaluate preferred folders, capture data, resolution, and modification time transparently.
  • Override recommendations at any time: keep, quarantine, ignore, or reset.
  • Pre-assess open groups without automatic file operations.
05Preview and result control
  • Search groups and filter by status.
  • Open file, text, and image previews with metadata.
  • Open files, show them in Explorer, or copy paths.
06Safe batch selection
  • Create a safe selection for each group with one click.
  • Apply batch rules across multiple groups with control.
  • Inspect every planned change in a cleanup preview before execution.
07Quarantine and recovery
  • Move selected files into application-managed quarantine first.
  • Restore with conflict handling and undo the last operation.
  • Show and remind about old entries without automatic permanent deletion.
08History and traceability
  • Record decisions and outcomes in an append-only history.
  • Keep scan status, file count, groups, and skipped items visible.
  • Process locally without transferring scanned files and without telemetry.
Control instead of a black box

Every decision stays visible and reversible

rsk.dedupe never changes a file solely because of a recommendation. A cleanup preview, quarantine, recovery, undo, and an append-only history provide control.

Permanent deletion always requires explicit confirmation. Quarantine and undo still do not replace an independent backup.

Try first. Decide afterwards.

Try everything before deciding

Every feature is available without restriction for seven days. A valid licence is required for continued use afterwards.

Christian Rüsken
Directly from the developer

Software directly from the developer

rsk.dedupe is developed by Christian Rüsken in Bochum. Scanning, image analysis, and file operations run locally on your Windows PC, and the application contains no telemetry.

Frequently asked questions

Frequently asked questions about rsk.dedupe

The most important answers about the application, trial, and licence.

Does rsk.dedupe delete files automatically?

No. Cleanup requires a preview and explicit confirmation. Selected files are moved into the application’s quarantine first by default.

How do duplicates differ from similar photos?

Exact duplicates are byte-identical. Similar photos are detected from visual characteristics and must be judged using the preview and metadata.

Can files be restored?

Quarantined files can be restored with conflict handling while their content and locations remain available. This is not a guarantee and important data still needs a backup.

Is the trial restricted?

No. rsk.dedupe is fully functional for seven days. A licence is required afterwards.

Find duplicates, inspect differences, and clean up safely

Try every rsk.dedupe feature for seven days with your own folders and photos.