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Automatically detect and mask personal information (email, phone, credit card, My Number, SSN, IP address) in text.
Type or paste text containing personal information into the input field.
Detected personal information is highlighted. Review the types and counts.
Copy the masked text to share it safely.
All processing happens in your browser. Text is never sent to a server.
Replace all characters with asterisks
Enter text to automatically detect and mask personal information
A tool that automatically detects and masks personal information (PII) such as email addresses, phone numbers, credit card numbers, My Number, SSN, and IP addresses in text. Safely remove personal information before sharing logs or screenshots. All processing is done in the browser and text is never sent to a server.
No. All processing happens in your browser and text is never sent to a server. Data is cleared from memory when you leave the page.
Seven types: email addresses, phone numbers (Japan and international formats), credit card numbers, My Number, SSN (Social Security Number), and IP addresses (IPv4).
Full mask replaces all characters with asterisks. Partial mask keeps some characters visible (e.g., last 4 digits) to maintain data identifiability while masking.
Since detection uses regex pattern matching, non-standard formats may not be detected. Also, 12-digit number sequences may be falsely detected as My Number. We recommend manual verification for important data.
Use the checkboxes in the "Detection Targets" section to toggle individual PII types on or off.