A simple but powerful form validator for Compose Multiplatform — reactive FieldState/FormState with a DSL, built-in validators (email, phone, password, credit-card, IBAN, dates, postal codes, ...), async server-side checks, cross-field rules, multi-step wizards, conditional fields, and i18n.

Drop-in Material3 composables for cmp-form: FormTextField, FormCheckbox, FormSwitch, FormRadioGroup, FormSlider, FormDatePicker. Transitively brings cmp-form (the headless core).