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Duplicate File Finder (by Hash)

Find byte-identical non-empty files in a bounded ZIP using hashes and optionally return a deduplicated copy; review which file is kept.

⚡ 199 points per successful run · Balance: 0 · Buy points

Upload ZIP to Scan

Find identical (byte-for-byte) files inside your ZIP archive using SHA-256 hashing.

📦

Click to Upload ZIP

Select .zip file

Duplicate Results

Upload a ZIP to find identical non-empty files (SHA-256 check).

How to Use

Upload a ZIP archive. The tool extracts it to a temporary sandbox, hashes every non-empty file with SHA-256, and groups files with identical content. Optionally check "Delete Duplicates" to receive a new ZIP with only one copy of each duplicate group kept — your original upload is never modified in place.

About Duplicate File Finder (by Hash)

Find byte-identical non-empty files in a bounded ZIP using hashes and optionally return a deduplicated copy; review which file is kept.

How to use this tool

  1. Enter the requested data or choose an upload.
  2. Check the file type and size limit before submitting.
  3. Review the result, then download or copy it.
  4. Keep the original and use the actions above to continue safely.

Read the full Duplicate File Finder (by Hash) guide →