Custom Mask

Define your own regex patterns to mask any type of content. Perfect for industry-specific identifiers, internal codes, custom formats, or any pattern not covered by our preset tools.

Features

•Custom regex pattern support
•Case-insensitive option
•Global matching
•Custom replacement text
•Real-time pattern testing

How It Works

1.Enter your regex pattern
2.Set replacement text (e.g., [REDACTED])
3.Paste text to process
4.Click 'Mask' and copy result

Pattern (Regex)

Replacement

Flags:g(global)i(case-insensitive)m(multiline)

Input

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