Highcloak by Blueinit LLC

Highcloak catches personal data in your AI prompts before they leave your machine.

Paste a customer's Social Security number into ChatGPT? Highcloak blocks it. Type a credit card number into Claude? Blocked. Phone number in Gemini? You'll see a warning.

WHAT IT DETECTS

Social Security numbers
Credit card numbers (with Luhn validation)
Email addresses
Phone numbers
IP addresses
Dates of birth
US passport numbers
Driver's license numbers
HOW IT WORKS

You type into ChatGPT, Claude, Gemini, or Copilot
Highcloak scans your text locally in the browser
If PII is found, you see a warning or the send button is blocked
Choose to redact the data or remove it yourself
YOUR DATA NEVER LEAVES YOUR MACHINE All detection runs locally using pattern matching in the browser. Highcloak does not send your text anywhere. No cloud processing. No server required. No account needed.

Don't trust us — verify. The detection engine is open source.

CONFIGURABLE POLICIES

Block: SSNs, credit cards, passport numbers, driver's license numbers (send is disabled)
Warn: Names, phone numbers, IP addresses, dates of birth (you choose what to do)
Allow: Email addresses (logged only)
WORKS ACROSS EVERY AI TOOL One extension covers ChatGPT, Claude, Gemini, and Copilot. You don't need a separate tool for each.

FREE. NO ACCOUNT REQUIRED. Install and start detecting PII in under 60 seconds. No sign-up, no configuration, no server.

Coming soon: centralized policies, audit trails, and compliance reports for teams.