Text Redaction & PII Detector
Detect and mask sensitive data in text — email addresses, phone numbers, credit card numbers, IP addresses and API keys/tokens — or just list what was found.
Your file is processed locally in your browser and is not uploaded to our server.
Pattern-based detection is not perfect — always double-check before sharing redacted text.
Redacted text
Contact John at jo******@example.com or *********34. Server IP: 192.***.***.***
How to use Text Redaction & PII Detector
- 1Paste text that may contain emails, phone numbers, credit card numbers, IP addresses or API keys/tokens.
- 2Choose which pattern types to look for.
- 3Redact mode masks the matches in place; Detect mode lists what was found without changing the text.
Frequently asked questions
No — pattern matching is heuristic and can miss unusual formats or produce false positives. Always review the result before sharing text publicly.
No — all matching and masking happens locally in your browser.
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