validator_kit 0.0.1

A lightweight, reusable, and extensible Flutter form validation package.

[Validator Kit Banner]

Validator Kit

A lightweight, reusable, customizable and null-safe Flutter form validation package.

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[assets/logo.png]

✨ Features

• ✅ Required Validator
• ✅ Email Validator
• ✅ Phone Validator
• ✅ URL Validator
• ✅ Username Validator
• ✅ Password Validator
• ✅ Confirm Password Validator
• ✅ Number Validator
• ✅ Pattern Validator
• ✅ Minimum Length Validator
• ✅ Maximum Length Validator
• ✅ Combine Multiple Validators
• ✅ Custom Error Messages
• ✅ Fully Null-safe
• ✅ Lightweight & Fast
• ✅ Easy to Use
• ✅ Reusable Across Projects

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📱 Preview

[assets/preview.png]

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🎬 Demo

[Validator Kit Demo]

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📦 Installation

Add the package to your pubspec.yaml

dependencies:
  validator_kit: ^0.0.1

Then run

flutter pub get

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🚀 Import

import 'package:validator_kit/validator_kit.dart';

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⚡ Quick Start

TextFormField(
  validator: ValidatorKit.combine([
    ValidatorKit.required(),
    ValidatorKit.email(),
  ]),
)

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📚 Available Validators

Required

ValidatorKit.required()

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Email

ValidatorKit.email()

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Phone

ValidatorKit.phone()

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URL

ValidatorKit.url()

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Username

ValidatorKit.username()

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Password

ValidatorKit.password()

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Confirm Password

ValidatorKit.confirmPassword(
  () => passwordController.text,
)

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Number

ValidatorKit.number()

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Pattern

ValidatorKit.pattern(
  RegExp(r'^[A-Z]{3}[0-9]{4}$'),
  message: 'Invalid Employee ID',
)

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Minimum Length

ValidatorKit.minLength(8)

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Maximum Length

ValidatorKit.maxLength(30)

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Combine Validators

validator: ValidatorKit.combine([
  ValidatorKit.required(),
  ValidatorKit.email(),
  ValidatorKit.minLength(8),
])

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Disable Validation

If you want to disable validation conditionally:

ValidatorKit.none()

Example

validator: isGuest
    ? ValidatorKit.none()
    : ValidatorKit.required(),

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Custom Error Message

ValidatorKit.email(
  message: 'Please enter a valid email.',
)

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💻 Complete Example

TextFormField(
  decoration: const InputDecoration(
    labelText: 'Email',
  ),
  validator: ValidatorKit.combine([
    ValidatorKit.required(),
    ValidatorKit.email(),
    ValidatorKit.minLength(8),
  ]),
)

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❤️ Why Validator Kit?

• Clean API
• Highly reusable
• Easy to combine validators
• Supports custom error messages
• Null-safe
• Lightweight
• Production ready
• Perfect for Flutter Forms

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🛣️ Roadmap

Upcoming features

• 🌍 Localization Support
• 📅 Date Validator
• 💳 Credit Card Validator
• 🌐 IPv4 & IPv6 Validator
• 🆔 IBAN Validator
• 🏳 Country-specific Phone Validation
• ⏳ Async Validators
• 🔥 Custom Validator Builder
• 📝 File Validator
• 📦 OTP Validator

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🤝 Contributing

Contributions are welcome!

If you'd like to improve Validator Kit, feel free to open an issue or submit a pull request.

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⭐ Support

If you like this package, please give it a ⭐ on GitHub.

It helps the project grow and motivates future improvements.

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🤝 Connect with Me

If this package helps you, feel free to connect.

• 💻 GitHub: https://github.com/Dev-SohelRana
• 💼 LinkedIn: https://www.linkedin.com/in/mdsohelrana201/
• 🌐 Portfolio: https://dev-sohelrana.github.io/sohelrana-portfolio/

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📄 License

This project is licensed under the MIT License.