A validation tool for checking the validity of a Viaduct Archfile

Validations for ruby objects or POROs.

Set of rich helpers for email validation

Build UI tests for manual validation across multiple devices.

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.

Param checker adds a before filter for each api to do the validation

Easy validation and processing of Paypal IPN payments

Adds new validations to AR

It allows to handle JSON and JSONB fields as if they are proper database columns, handling default values, type casting and easier validation.

WADL validator for requests

A gem that verifies the integrity of a state history

Tripwire captures validation errors from your Ruby on Rails application to help you identify and fix user experience issues. The TripwireNotifier gem makes it easy to hook up your app to the Tripwire web service.

A tool for building slack block kit with validation.

Rails Validations for typically UK specific data

Your favourite validations with Ruby

error_messages_for_helper provides a simple helper to show ActiveRecord validation errors (just like old helper error_messages_for for Rails-2.3.x).

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