Inputmask is a JavaScript library that serves as a client-side input formatter and form input validator. It constrains text input fields to specific formats, such as phone numbers and dates, to ensure data consistency.
The project provides guided text entry and user input validation to prevent formatting errors. It standardizes how structured information is entered in web browsers to support more reliable server-side processing.
The library manages data validation and formatting by enforcing predefined patterns on user entry. It handles real-time input interception, cursor-position tracking, and the injection of dynamic placeholders to guide the user.