Allows defining structure of data and perform validation against it using json-schema

Validation for Dutch bank account numbers, Citizen Service Numbers (BSN) and Payment reference

Validates translated attributes accessed with globalized accessors

A small and efficient validation library for Rails and anything that uses Ruby.

ActiveModel validations for domains (including TLDs), ip addresses and email addresses with fully localization support.

Generate jCheck code according to ActiveModel validations

ISO Schematron Validation

A Rails plugin that allows validation on partially completed Active Record models (useful in wizards that incrementally build a model).

A parser which converts dry-validation or dry-struct into valid swagger documentation

Data validation and transformation library.

A library for making it extremely fast for Rails developers to set up and save ActiveRecord instances when writing test cases. It aims to: * meet all your validations automatically * only make you specify the attributes you care about * give you a rich set of features so you can specify associa...

RUT/RUN Chilean validator for Rails models

Input Mask validation for ActiveModel

Parameter whitelisting for Sinatra. Provides validation, defaults, and post-processing.

Provides more advanced and flexible 'if then then that' style conditional validation. Validate fields based on the values of other fields in your model.

Combine email validation and transformations to produce canonical email addresses.

Use Turnstile by Cloudflare to perform captcha validation in your Rails app

JSON schema validation for Rails

Access environment variables. Also includes presence validation, type coercion and default values.

Validation for serialized model objects