What is Input Masking?

Input masking formats user input as it is typed to match an expected pattern, reducing errors.

When to use Input Masking?

- Phone numbers, credit cards, dates, and IDs

When not to use Input Masking?

- Free‑form inputs where constraints hinder entry

What is the anatomy of Input Masking?

- Placeholder tokens and separators

- Validation integration and accessibility

- Paste behavior and internationalization