Nebula - Custom Mask Input transforms standard Bubble input fields into formatted, guided data entry interfaces using simple mask patterns. By defining placeholder characters for digits and letters, you can enforce consistent formatting for phone numbers, dates, credit cards, postal codes, document IDs, and any structured text that requires specific separators or fixed positioning.

The plugin works by intercepting user input in real-time, validating each character against your mask pattern, and automatically inserting separators like dashes, slashes, parentheses, or spaces. Users see the expected format instantly as they type, reducing errors and confusion while improving overall form completion rates.