Phone number validation forked from MOBI Wireless Management

A ruby gem library for that offers utilities, version constraint parsing and validation.

Postcode validation module

Presence at least one validation for ActiveModel

Set of rich helpers for email validation

A Domain Specific Language for Validations written in pure Ruby.

Build UI tests for manual validation across multiple devices.

Provides parsing, validation & accessors

Automatically pass attributes through Sanitize before validation

Rails Validations for typically UK specific data

This Gem is Used for Validations URLs

Hash validation for 'options'-like methods.

Validations is a library for validating data structures.

Three level validation on email addresses for ActiveRecord.

Validations for european countries VAT numbers

ActiveModel validation for credit card number.

Allow for validation of only some attributes

A collection of various validators for Rails forms

Your favourite validations with Ruby

An advance email validator. Checks format, MX record existence for email domain, and SMTP address validation.