Runs entirely in your browser.

No network calls.
Works offline after load.
Fully auditable.

Your passphrase is the lock.

4-digit PIN: 10,000 combinations.
4 BIP39 words: about 17.6 trillion.
At 1 million guesses per second, full search is about 204 days.

Restore works if the protected headers still exist.

Extra columns are fine.
Missing protected columns are skipped.
Renamed protected headers will not restore.

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Peripamo Data Protection Utility

All data and computation happens in this browser only.

Step 1

Select Mode

Step 2

Upload Files

No CSV loaded yet.
Step 3

Preview & Select

Step 4

Passphrase

Suggested Strong Passphrase
Step 5

Process & Download

Load a CSV to begin.
Use on a trusted device. The CSV carries only tokens. The encrypted mapping file carries the real values. Restoring requires both the file and the same passphrase.