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Privacy: All document processing runs locally in your browser. Documents are never uploaded to any server, keeping your data private and secure.
📝 Input text
🔒 Detection result
Detected sensitive information will be masked here.
Frequently Asked Questions
Which types of sensitive information can be detected?
Phone numbers, email addresses, ID card numbers, bank card numbers, IP addresses, and URLs are detected and masked.
What are the masking rules?
By default, smart masking keeps the first and last characters (e.g., 138****5678); full masking is also available.
Is data sent to a server?
No. Detection and masking run entirely in your browser — text never leaves your device.
Can I copy the result?
Yes. Click 'Copy Masked Result' to copy the masked text for sharing or storage.