Privacy utility · No upload

Mask sensitive text before you paste it elsewhere.

Detect common emails, phone numbers, card-like numbers, Korean resident-number-like patterns, IP addresses, and custom terms. Processing stays inside your browser.

Original text

Paste text to mask

Please contact Mina at mina@example.com or +82-10-1234-5678.
Invoice card note: 4111 1111 1111 1111
Internal IP: 192.168.0.24
KR ID-like sample: 900101-1234567

Custom words / names to mask

Mask style

Custom term matching

This helper uses pattern-based masking. It can miss unusual formats and may over-mask normal text. Review the result before sharing.

Masked output

Total masks0

Email0

Phone0

Best used before pasting logs, support tickets, chat transcripts, or customer notes into third-party tools.