Redact Personal Data

Paste text that contains names, phone numbers, national ID numbers, card numbers and email addresses, and it hides all of them at once. The last digits stay visible so you can still tell which record it was, which means the result is safe to screenshot and share. Everything runs in your browser and nothing is sent to a server.

📝 Your text is processed in the browser. Nothing is uploaded.

Paste the text you want to redact

NamesMasks the middle of two- to four-character Korean namesPhone numbersKeeps the last four digits, hides the middleNational ID numberKorean resident registration number — keeps the date, hides the restCard numbersKeeps only the first and last four digitsEmail addressesKeeps the domain, hides the local part

Mask character

Redacted text

Type something above and the result appears here

What this tool does

Names, phones, IDs, cards and emails in one pass
Keeps the last digits so records stay identifiable
Turn each kind on or off
Choose the mask character (* ● ■ X)

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Nothing you paste here leaves the page, so drafts and personal notes are safe.