Automatic Form Validation demos

Explore common patterns, from basic forms to advanced interactions.

Core demos

Basics

Basic form

Required fields, email validation, and submit checks.

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Realtime

Realtime validation

Field validation on blur with clear messaging.

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Custom

Custom validators

Use fn: callbacks and runtime validators via API.

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Logic

Conditional fields

Show and validate fields based on selections.

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Groups

Checkbox groups

Min/max selection validation for grouped checkboxes.

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Advanced

Full form

Advanced form

Complex form with radios, hidden sections, and custom flows.

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Sandbox

Playground

Edit HTML/JS, run instantly, and test validators.

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