Regex Validation for Gravity Forms

Regex Validation for Gravity Forms adds a powerful regex validation option to your Gravity Forms fields. Define custom regular expression patterns or choose from built-in presets to validate user input — both server-side and client-side.

Features

• Custom regex patterns — Add any regular expression to validate field input

• Unicode support — Full Unicode character class support ( \p{L}, \p{N} ) for international names and text

• Built-in presets — Quick-select common patterns for names, emails, phone numbers, and more

• Server-side validation — Secure PHP validation that can’t be bypassed

• Client-side validation — Instant feedback on input change using JavaScript

• Compound field support — Works with Name fields (validates each sub-input individually)

• Custom error messages — Define user-friendly validation messages per field

• Extensible — Add your own presets and field types via filters

• Accessible — Error messages use role="alert" for screen readers

Supported Field Types

• Text

• Name (with individual sub-input validation)

• Email

• Phone

• Website

• Textarea

Built-in Presets

• Name — Unicode letters, spaces, hyphens, apostrophes

• Email — RFC 5322 compliant

• US Phone Number — Common US formats

• International Phone Number — E.164 format

• Alphanumeric — Unicode letters and numbers only

• No Special Characters — Unicode letters, numbers, and spaces only