A simple gem to auto generate UUIDs for the id field of models.

Generate uuids for models

UUIDParameter handles a :uuid column and validation for any model.

Description of Uureader.

Description of Uusoso.

A better way to do UUID in Rails 2/3

a simple vue scaffold on rails.

Vain routes is a Rails engine that enables you to view your routes in a filterable online view.

Automatically validate ActiveRecord models based on the database schema.

Validacity adds an extra layer of validation objects where all your validation logic can be moved to.

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.

A Rails 3.1 & 3.2 version of Encrypted Cookie Store by FooBarWidget

Params validations for Ruby on Rails

validate-response is a gem for bringing error messages from one or more ActiveRecord objects to the unified structure & highlight validation errors in forms (ajax supported).

ActiveRecord model validation against stopforumspam.com (Rails 3)

Brazilian zipcode validations for ActiveRecord, integrated with correios-cep gem.

ActiveRecord validations for danish CVR numbers

Some description for validates-gem

Use those validators for Australian numbers as ABN, TFN, ...

SWIFT validator for ActiveRecord attributes.