Local PII Masking

About

Local PII Masking — Redact Sensitive Data Locally

  🔒 Your documents never leave your computer. 100% private. 100% offline.

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  What it does

  Local PII Masking automatically finds and removes sensitive personal information from your
  documents — all without sending anything to the cloud.

  Upload a PDF, Word document, or text file, and the extension instantly detects:

  • Names, addresses, phone numbers, emails
  • ID numbers — NRIC/FIN (Singapore), MyKad (Malaysia), Aadhaar (India), HKID, and 60+ other
    sian ID formats
  • Credit card numbers (Luhn-validated)
  • Organizations and locations — detected using AI in both English and Chinese

  Choose how to mask it — black redaction boxes, tokenization, or partial masking — and downl
  oad the clean document instantly.

  DOCX files keep all formatting — tables, images, bold/italic text remain intact; only the s
  ensitive data gets replaced.