Duplicate File Finder

What is Duplicate File Finder?

This duplicate file finder scans your selected files and identifies exact duplicates by computing SHA-256 hashes entirely in your browser. No files leave your device. Group duplicates, review them side-by-side, and decide which copies to keep — helping you reclaim storage space.

How to use

1. Drag and drop files or select a folder of files you want to scan for duplicates.
2. Wait for the tool to compute SHA-256 hashes for each file and group identical files together.
3. Review the duplicate groups, compare file details (name, size, date), and export the report as CSV for cleanup planning.

Result

A photographer drops 500 photos from different backup folders. The tool finds 47 exact duplicates across three folders, showing 120MB that can be safely reclaimed without losing any unique photos.

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