File fingerprint

Hashes to verify a file, compare files and check a hash.

Free, no sign-up. It runs inside your browser: your files never leave your device.

Get a file's hash (SHA-256, SHA-1, MD5 and SHA-512) to check that it has not changed. Compare files, or check a file against a hash someone gave you.

How to use File fingerprint

  1. Drop one or more files of any type.
  2. Read the hashes shown for each file.
  3. To check a file, paste a hash in "Check against a hash". Add two or more files to compare them.
  4. Click "Save report" to keep a copy.

Questions

Which hashes does it show?

SHA-256, SHA-1, MD5 and SHA-512.

Can it tell if two PDFs are the same document?

Yes. For PDFs it also tells a re-saved copy or a later version of the same document from a different one.

Does it work with files that are not PDFs?

Yes. It takes any file.

Is the file uploaded to make the hash?

No. The hashes are made on your device.

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