A clean, dark-themed passcode screen for quick 4–6 digit PIN entry. It features minimalist slot indicators with masked characters, large rounded keypad buttons for easy tapping, and a highlighted backspace for fast corrections—delivering secure, elegant authentication on mobile and web.

Functionality

• Configurable PIN length (4–8 digits), default 4

• Slot indicators with underline + masked characters (* or •)

• Auto-advance between slots and optional auto-submit on completion

• Large rounded keypad (0–9) with tactile tap feedback

• Backspace key (accent color), long-press to clear

• Error feedback: shake animation, color state, and haptics

• Cooldown/lockout after N failed attempts with countdown

• “Forgot PIN?” / help action via custom callback

• Optional biometric fallback (Face/Touch ID)

• Optional paste/OS OTP autofill with validation

• Secure hashing + device secure storage for PIN data

• Theming controls: dark/light, colors, radius, spacing, fonts

• Accessibility: screen-reader labels and generous hit targets

• Localization-ready labels (e.g., “Enter Your 4 Digit Pin”)

• Analytics hooks: onDigit, onComplete, onError, onLockout

Use cases

• App unlock and session re-authentication

• Step-up verification for payments, withdrawals, or exports

• Wallets, banking, and fintech security screens

• Protecting settings, profiles, and private content

• POS/delivery/pickup code confirmation

• Kiosk/guest/parental control modes

• Onboarding flows to set or change a PIN

• Internal tools requiring quick, lightweight auth

Keywords
pin pad, passcode entry, numeric keypad, 4-digit pin, 6-digit pin, masked input, underline slots, auto advance, auto submit, backspace key, error shake, haptic feedback, lockout timer, cooldown, forgot pin, biometric fallback, Face ID, Touch ID, secure storage, hash pin, otp autofill, paste detection, accessibility labels, dark theme, rounded buttons, responsive ui, mobile auth, web auth, session reauth, payment confirmation, wallet security, fintech ui, kiosk mode, localization, theming controls, Flutter widget, FlutterFlow component, modern authentication, premium styling.