What anonymization methods are used?

Masking (e.g. J*** D***), pseudonymization (fake but consistent replacements), and full redaction.

Is the mapping reversible?

Pseudonymized data uses a consistent hash — the same value always maps to the same pseudonym within a session.

No. Everything runs locally in your browser.

Process files up to the browser memory limit.

Yes — a before/after preview shows the first 20 rows.

Safely mask Personally Identifiable Information (PII) before sharing. GDPR compliant formatting for testing, analytics, and vendor sharing.

Drag & Drop Data

Click to browse or drop your file directly here.

Or Import From

Supported: .csv, .xlsx · Max 5000MB

ZERO-UPLOAD. Safe processing on your device.