PII Redaction Tool
Automatically detect and redact Personally Identifiable Information (PII) — emails, SSNs, phone numbers, credit cards, names & addresses.
100% client-side · Zero data leaves your device
- Emails
- US phone numbers
- SSN / ITIN / EIN
- Credit cards
- Dates of birth
- Names
- Addresses & ZIP
- IP addresses
- DL / passport
About PII Redaction & Why It Matters
Personally Identifiable Information (PII) includes any data that can be used to identify, contact, or locate a specific individual. In the age of data breaches and privacy regulations (GDPR, CCPA, HIPAA), redacting PII from documents, logs, support tickets, or test data is critical for compliance and security.
Our PII Redaction Tool offers automated detection of sensitive patterns using advanced regular expressions. It replaces emails, phone numbers, credit cards, SSNs, US addresses, common first names, and more with [REDACTED] tags — preserving document structure while removing private details. Because everything runs locally in your browser, no data ever touches external servers, guaranteeing confidentiality.
Use cases: Data anonymization for QA/testing, sharing system logs, publishing case studies, complying with data protection requests, and training AI without exposing real user data.
Looking for more privacy and security utilities? Browse our full security tools collection, or try the strong random password generator.
Frequently Asked Questions
1. What types of PII does this tool detect?
Our tool detects emails; US phone numbers; Social Security Numbers, ITINs and EINs (impossible ranges are ignored); credit card numbers (checked with the Luhn checksum, so random digit strings are left alone); dates of birth when labeled (DOB, Date of Birth, Born); street addresses, PO boxes and city/state/ZIP lines; IPv4 addresses; driver's license, passport and ID numbers when labeled; and names (200+ common first names, first-and-last name pairs, titles such as Mr. or Dr., and labeled names like "Name:"). It is built for US formats and covers the most common PII types.
2. Is my data sent to your servers?
Absolutely not. The PII Redaction Tool runs entirely inside your web browser using JavaScript. No text, images, or content is uploaded to any server. You can disconnect from the internet after loading the page and the tool still works. Your privacy is 100% protected.
3. Is this tool GDPR / CCPA compliant for data processing?
Yes. Since no data is transferred or stored externally, using this tool for redaction falls under secure internal processing. For businesses, this tool helps fulfill "right to deletion" or anonymization requirements. Always perform manual verification for context-specific PII like rare surnames.
4. What about uncommon names or international addresses?
The tool recognizes 200+ common US first names, any capitalized surname that follows one (for example, James Morrison), names after titles such as Mr. or Dr., and names after labels such as "Name:" or "Patient:". A name that appears on its own and isn't on the list can be missed, and it is built for US formats, so non-US addresses and numbers may not be caught. Review the output before sharing, and manually redact anything else.
5. Can I test the tool before using real data?
Yes! There's a pre-filled demo text on page load with mock PII (e.g., emails, SSN, credit card). Click "Redact PII" to see how it works — all within your local browser. You can replace it with your own content anytime.
6. Is the redaction process reversible?
No, the tool replaces detected PII with static [REDACTED] placeholders, permanently removing original data from the displayed output. Ensure you keep a backup of the original if needed. The redacted version is safe for distribution.