Developer & Data tool
Partially mask email addresses, Korean mobile numbers, resident-ID patterns, and 16-digit card-shaped numbers in text.
Only fixed patterns are partially hidden. Names and addresses remain visible.
Prepare text for sharing
Paste the material and select Mask data. Supported patterns are processed together; there are no type or visibility-range controls.
Email domains and the last four phone digits stay visible. Consider whether the surrounding text can still identify someone.
Handle names, addresses, and international numbers separately. Also check whether an ordinary number was masked because it resembled a supported pattern.
A worked example
The first email character and domain, phone prefix, and final four digits remain. This result is not anonymized data.