validate_kit library

A zero-dependency, fluent form validation toolkit for Dart and Flutter.

validate_kit replaces repetitive, nested form validation code with clean, chainable rules that read like a sentence:

import 'package:validate_kit/validate_kit.dart';

final error = FieldValidator()
    .required('Field cannot be blank')
    .email('Enter a valid email address')
    .custom((value) =>
        value!.contains('admin') ? 'Admin emails not allowed' : null)
    .validate(controller.text);

Every built-in rule skips empty values unless it is FieldValidator.required, so optional fields behave intuitively. Error messages can be overridden per call or globally through ValidationMessages for localization.