Masker.js JavaScript Library Examples

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Add client-side input masks and validation with Masker.js. Includes date range comparison, character counters, and international phone number formats.

Character Counter Masks

Notes (Counter hidden until typing)

Bio (Counter visible and required)

Number & Phone Masks

Account ID (Numbers only)

US Phone (Required)

UK Phone (Visible Placeholder)

Email Mask & Validation

Email Address (Required)

Single Date & Validation Masks

Date (Test invalid month/day)

Date (Default: No past years)

Date (Since 1900)

Date (Future years only)

Date (Any year allowed)

Military Date

Date Range Validation

Start Date

End Date