jacaranda generates helper methods based on your model validations.

Mail validation for ActiveModel

µValidator is a zero dependency validation library, which mimics ActiveModel::Error behaviour

Adds parameter validation and error control to interactor

A method construction and validation toolkit.

Methodic : provide Hash table options arguments manager (specifications and validations

MinHTTP allows one to send and receive raw HTTP requests. It's a very thin wrapper around EventMachine's connect method with some SSL validation added.

Provides data class validation for active-model objects

Wrap validation conditions with a single command

Handle validation, coercion, and attributes.

Tiny plugin for MongoMapper to strip whitespace from strings before validation.

Adds the association and validation macros for Rspec in the same way Shoulda does for ActiveRecord.

Shared CarrierWave and Validations and Configurations

[Deprecated] Flexible, Easy Function Parameters with Validation.

Validation errors explanation done in good way for Padrino framework.

A TOTP generator, that includes validation, generation and send methods. See https://github.com/fboccacini/onetime-totp for reference and usage.

DSL for method arguments validation and casting

Client side validation with parsley and simple_form.

PDF/A Validation using Apache PDFbox

Phone number validation forked from MOBI Wireless Management