Automatically pass attributes through Sanitize before validation

A schema parsing and validation library for Ruby

Helpful rspec matchers for testing validations and associations.

Extra validations for Scrivener.

Integrates sequel validations and sequel hooks into couchbase model.

PORO validation mixin with no deps

simple 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.

HasPhoneNumber makes validations for US phone numbers in ActiveRecord models easy.

Validations for ruby objects