Tool + guide
Browser PII redaction tool
Detect common identifiers in your browser, review every hit, then export Markdown for external AI — no account and no document upload on the default path. The live tool is on this page.
Live demo · runs in your browser
Sample engagement letter
Original
0 hits markedCONFIDENTIAL — Engagement letter excerpt
From: jane.doe@northbridge-law.com
Phone: (415) 555-0198
Client SSN: 234-56-7890
Northbridge Holdings LLC and Jordan Hale entered into this Agreement on January 15, 2024.
Case No. CV-2024-00123 concerns the property at 1200 Market Street, San Francisco, CA 94102.
Settlement amount: USD 1,250,000.00
Please brief ChatGPT only after redaction.
Ready for ChatGPT
Markdown pathCONFIDENTIAL — Engagement letter excerpt From: jane.doe@northbridge-law.com Phone: (415) 555-0198 Client SSN: 234-56-7890 Northbridge Holdings LLC and Jordan Hale entered into this Agreement on January 15, 2024. Case No. CV-2024-00123 concerns the property at 1200 Market Street, San Francisco, CA 94102. Settlement amount: USD 1,250,000.00 Please brief ChatGPT only after redaction.
What we detect in v1
- Emails and phone numbers
- SSN / ITIN-like identifiers
- Credit card numbers (Luhn-checked)
- Organization-like strings and person-name heuristics
- Coarse addresses, dates, currency amounts, case-style IDs
Heuristics miss things and invent false positives. Always review before export.
Controls that matter
- Toggle or remove any detection in the full workspace
- Add an exact manual span for matter-specific strings
- Switch between consistent pseudonyms and asterisk masking
- Custom regular expressions for internal ID formats
Need the review list and Markdown download? Open the workspace.
Who this is for
Lawyers, paralegals, in-house counsel, and privacy-minded operators who already use ChatGPT/Claude and need a local gate — not e-discovery production suites or court-ready burned-PDF redaction.