NestFiles
Find duplicates. Organize safely.
by Verteletsky Software
Blog

Notes from NestFiles

Short, occasional posts about what changed and why — no marketing fluff.

August 3, 2026

Similar photos, audio, and video are now reviewable

Exact duplicates were never the whole picture — a resized photo, a re-encoded song, or a trimmed video clip can still be the same content in spirit. NestFiles now has a separate, opt-in mode that flags these near-matches using perceptual image comparison, audio fingerprinting, and video keyframe matching. It's review-only: nothing found this way is ever auto-selected, quarantined, or deleted.

In our own testing against Czkawka on a small corpus, NestFiles caught 100% of true audio-duplicate pairs versus roughly half for Czkawka; photo results were close, and video matches were equal in count though Czkawka ran faster. Small test sets — read as a data point, not a general claim.

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August 3, 2026

Duplicates hiding inside ZIP, 7z, and RAR archives

Downloads and backup folders tend to accumulate archives, and duplicates can hide inside them just as easily as outside. NestFiles can now look inside ZIP, 7z, and RAR files to find exact-match entries without extracting them to disk. It's a read-only inspection for now — it tells you what's duplicated inside an archive, but quarantine and delete actions on archive contents aren't offered yet.

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August 3, 2026

How NestFiles compares to Czkawka, with real numbers

We publish an honest, numbers-included comparison against Czkawka rather than a vague "we're better" claim. On a 200,120-file benchmark, Czkawka finished about 2.5x faster on a cold cache and about 3x faster warm — we don't hide that. What we optimize for instead is the moment after the scan: preview, reversible quarantine, and restore. Read the full comparison for the complete picture, including where each tool wins.

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