An ActiveModel extension for more expressive validations reflection

A collection of common validation rules

Validation errors for logging

gem containing logstash code mainly for the purposes of doing programmatic validation of configuration. This gem aims to include all plugins but just enough rubygem dependencies to permit validation.

Hints for validation.

Provides an extensible hook for adding custom html attributes to input elements based on validation rules defined in your model.

Simple validation of params with a concern

named_validations names to arguments of active_model's validates method.

Adds soft validations (warnings) to ActiveModel

MobilityUniqueness extends the Mobility gem with locale-specific uniqueness validation for translated attributes in ActiveRecord models. It allows you to ensure that a given attribute, such as `name` in different locales, is unique within the specified locale. By using this va...

Encapsulates validations and business logic of class attributes. Currently compatible with ActiveModel validations.

Mount to an endpoint of your application, give it forms fields, and it'll return the validations errors/success in JSON. Really usefull when you want to add on-unblur or before-submit validations.

ShipEngine's easy-to-use REST API lets you manage all of your shipping needs without worrying about the complexities of different carrier APIs and protocols. We handle all the heavy lifting so you can focus on providing a first-class shipping experience for your customers at the best possible pri...

Client Side Validations for Rails 4

Validations for Argentinian specific information

Ruby SDK for MailSafePro Email Validation API. Robust and secure email validation and verification with batch processing, breach detection, and JWT authentication. GDPR compliant.

Sequel plugin which provides sexy validations for model.

Ruby wrapper for Experian Address Validation API

Isolate and automate your Rails validations.

emailvalidation.io provides an email validation & verification API. Automate email validation & verification without any user interaction.