Detect and redact personally identifiable information (PII) from text files.
--output FILE to write sanitized output to a file.--json and --preview are safe — they do NOT print raw PII values to stdout.*.entity-map.json) only when --output is used. Do NOT read the entity map file.Scans files for PII — credit cards, SSNs, emails, phone numbers, API keys, IP addresses, mailing addresses, dates of birth, passport numbers, driver's license numbers, bank routing numbers, medical license numbers, and insurance member IDs — and replaces each instance with a numbered placeholder like [CREDIT_CARD_1].
python scripts/sanitize.py patient-notes.txt --output clean.txt
python scripts/sanitize.py notes.md --preview
python scripts/sanitize.py report.txt --json --output clean.txt
python scripts/sanitize.py log.txt --categories ssn,credit_card,email --output clean.txt
See references/SUPPORTED_PII.md for the full list with detection methods and false positive mitigation.
| Category | Pattern type | Example |
|---|---|---|
| --- | --- | --- |
credit_card | Luhn-validated 13-19 digits | 4111 1111 1111 1111 |
ssn | 3-2-4 digit groups | 123-45-6789 |
cvv | Keyword-anchored 3-4 digits | CVV: 123 |
expiry_date | Keyword-anchored MM/YY | expiry 01/30 |
api_key | Provider prefix patterns | sk-abc..., ghp_..., AKIA... |
email | Standard email format | user@example.com |
phone | US/intl phone numbers | +1 (555) 123-4567 |
ip_address | IPv4 addresses | 192.168.1.100 |
date_of_birth | Keyword-anchored dates | DOB: 03/15/1985 |
passport | Keyword-anchored alphanumeric | Passport: AB1234567 |
drivers_license | Keyword-anchored alphanumeric | DL: D12345678 |
bank_routing | Keyword-anchored 9 digits | routing: 021000021 |
address | Street + city/state/zip | 742 Evergreen Terrace Dr, Springfield, IL 62704 |
medical_license | Keyword-anchored license ID | License: CA-MD-8827341 |
insurance_id | Keyword-anchored member/policy ID | Member ID: BCB-2847193 |
--json and --preview modes strip raw PII values from output. The entity map (containing raw PII to placeholder mappings) is only written to a sidecar file on disk when --output is used.Built by AgentWard — the open-source permission control plane for AI agents.
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