🇺🇿 UzKit — The Ultimate Flutter & Dart Toolkit for Uzbekistan

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A modern, high-performance Flutter and Dart utility toolkit specifically designed for Fintech, Banking, E-commerce, Invoicing, and Mobile Applications in Uzbekistan.

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⚡ Why UzKit?

Building applications for the Uzbekistan market requires dealing with local payment systems, phone formatting, invoice receipt generation, and legal document validations. UzKit provides a clean, battle-tested, 100% null-safe suite of utilities so you never have to reinvent the wheel.

• 💳 Bank Card Recognition: Instantly detects Uzcard, Humo, Visa, Mastercard, UnionPay, and Mir cards with auto-formatting, masking, and Luhn checksum validation.
• 📞 Phone & Mobile Operator: Formats +998 (xx) xxx-xx-xx and detects Beeline, Ucell, Mobiuz, Uztelecom, Humans, and Perfectum by network code.
• 💰 Money to Words in Uzbek: Converts numerical amounts up to trillions into written Uzbek words ("bir million to'rt yuz ellik ming so'm") in both Latin and Cyrillic alphabets with tiyin support.
• 🆔 Official Identity Verification:
  • JShShIR (PINFL): 14-digit official State Tax Committee checksum verification.
  • Passport & ID-Cards: Formatting and pattern validation (AA 1234567).
  • STIR (INN): 9-digit Taxpayer Identification Number validation.

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📦 Installation

Add uz_kit to your pubspec.yaml file:

dependencies:
  uz_kit: ^0.1.0

Or install it via terminal:

flutter pub add uz_kit

Then import the library in your Dart code:

import 'package:uz_kit/uz_kit.dart';

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📖 Comprehensive Usage Guide

1. 💳 Bank Cards (Uzcard, Humo, Visa, Mastercard)

// 1. Automatic Card Type Detection
final cardType = UzCardUtils.detectType('8600123456789012');
print(cardType.displayName); // "Uzcard"
print(cardType.isLocal);     // true
print(cardType.brandColor);  // 0xFF005696

// 2. Format with spaces
final formatted = UzCardUtils.format('9860123456789012');
print(formatted); // "9860 1234 5678 9012"

// 3. Privacy Masking
final masked = UzCardUtils.mask('8600123456789012');
print(masked); // "8600 **** **** 9012"

// 4. Expiry Date & Luhn Checksum
final isLuhnValid = UzCardUtils.isValidLuhn('8600123456789012');
final isExpiryValid = UzCardUtils.isExpiryValid('12/28');

// 5. Use in TextField Formatter
TextField(
  keyboardType: TextInputType.number,
  inputFormatters: [UzCardNumberFormatter()],
  decoration: InputDecoration(
    labelText: 'Card Number',
    hintText: '8600 0000 0000 0000',
  ),
);

Supported Card BIN Ranges:

Card Type	BIN Prefixes	Domestic / International
💳 Uzcard	8600, 5614	Domestic (Uzbekistan)
💳 Humo	9860	Domestic (Uzbekistan)
💳 Visa	4...	International
💳 Mastercard	51-55, 2221-2720	International
💳 UnionPay	62...	International
💳 Mir	2200-2204	International

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2. 📞 Phone Numbers & Mobile Operators

// 1. Detect Mobile Operator
final operator = UzPhoneUtils.detectOperator('+998 90 123 45 67');
print(operator.displayName); // "Beeline"
print(operator.companyName); // "Unitel LLC"

// 2. Format & Normalization
final formatted = UzPhoneUtils.format('901234567');
print(formatted); // "+998 (90) 123-45-67"

final normalized = UzPhoneUtils.normalize('+998 (90) 123-45-67');
print(normalized); // "998901234567"

// 3. TextField Formatter
TextField(
  keyboardType: TextInputType.phone,
  inputFormatters: [UzPhoneInputFormatter()],
  decoration: InputDecoration(
    labelText: 'Phone Number',
    hintText: '+998 (90) 123-45-67',
  ),
);

Supported Mobile Operators:

Operator	Network Codes	Company
🟡 Beeline	90, 91	Unitel LLC
🟣 Ucell	93, 94, 50	Coscom LLC
🔴 Mobiuz	97, 88	UMS LLC
🔵 Uztelecom	99, 95, 77	Uzbektelecom JSC
🟡 Humans	33	Humans LLC
🔴 Perfectum	98	RWC LLC

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3. 💰 Amount to Words in Uzbek (Kvitansiya & Cheklar)

Convert any numerical amount into grammatically correct written words in Uzbek:

// Latin Alphabet
final textLatin = UzMoneyToWords.convert(1450000);
print(textLatin); 
// Output: "bir million to'rt yuz ellik ming so'm"

// With Tiyin
final withTiyin = UzMoneyToWords.convert(2500000.50);
print(withTiyin); 
// Output: "ikki million besh yuz ming so'm 50 tiyin"

// Cyrillic Alphabet
final textCyrillic = UzMoneyToWords.convert(1450000, script: UzScript.cyrillic);
print(textCyrillic); 
// Output: "бир миллион тўрт юз эллик минг сўм"

// Currency Amount Formatter with Spaces
final formattedMoney = UzMoneyFormatter.format(1250000);
print(formattedMoney); // "1 250 000 so'm"

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4. 🆔 JShShIR (PINFL) & Passport Verification

// 1. JShShIR (PINFL - 14 Digits) Checksum Validation
final isPinflValid = UzPinflValidator.isValid('30101901234567');
print(isPinflValid); // true/false based on official STC algorithm

// 2. Passport / ID-Card Formatting & Validation
final formattedPassport = UzPassportUtils.format('aa1234567');
print(formattedPassport); // "AA 1234567"

final isPassportValid = UzPassportUtils.isValid('AA 1234567');
print(isPassportValid); // true

// 3. STIR / INN (9 Digits) Validation
final isTinValid = UzTinValidator.isValid('123456789');

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📱 Interactive Demo Application

Run the bundled Flutter demo app in the example/ directory:

cd example
flutter run

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🧪 Testing & Quality Assurance

All features are covered by comprehensive unit tests:

flutter test --coverage

Output:

00:00 +10: All tests passed!

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👨‍💻 Author & Contributions

Created with ❤️ by Ibrohim Qobilov.

Feedback, feature suggestions, and pull requests are welcome!

• GitHub Repository
• Report an Issue

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📄 License

This package is open-sourced under the MIT License.