Mask Personal Data Before Pasting into AI
Before pasting into ChatGPT or Claude, automatically hide personal data such as ID numbers, cards, and phone numbers. Everything runs in this browser only.
No server upload · 100% in-browser processing
Your input text is never sent to or stored on any server. Only your masking settings are saved.
0 chars
No personal data detected.
⚠️ Always double-check the result with your own eyes before pasting.
Data types to mask
Masking style
When on, only checksum-valid cards are masked, reducing false positives.
⚠️ Notice · Disclaimer
This is a regex-based helper and does not guarantee 100% complete detection. Data with unusual formats or that is only inferable from context may be missed, so always verify the masked result before pasting. A miss can lead to a privacy leak.
Guide · FAQ · bal.pe.kr 도구 모음
자세한 설명은 Guide, 자주 묻는 질문은 FAQ, 프라이버시·운영 정보는 About 참조. 마지막 업데이트 2026-07-11.