Validates Brazilian CPF Document and test it with matchers in a simple way.

Validates Chile RUT Document and test it with matchers in a simple way.

Validates Colombia CC Document and test it with matchers in a simple way.

Validates Colombia NIT Document and test it with matchers in a simple way.

Validates Guatemala DPI Document and test it with matchers in a simple way.

Validates Mexico RFC Document and test it with matchers in a simple way.

Validates Panama RUC Document and test it with matchers in a simple way.

Validates Peru DNI Document and test it with matchers in a simple way.

Validates Peru RUC Document and test it with matchers in a simple way.

Adds ActiveModel validators for common instant messaging services like Discord, Telegram, Matrix, and Signal (as well as legacy services like AIM, Yahoo!, and Skype).

Validates IPv4 and IPv6 addresses

Validates uniqueness of has_many children

Rails 3 profanity validator for active model

To prevent noobs from being uber noobs

ActiveModel validator that ensures Word-tags hasn't been accidentally pasted into WYSIWYG attributes.

Validates Panamanian Identity Document and test it with matchers in a simple way.

Validates Panamanian Single Taxpayer Registry Document and test it with matchers in a simple way.

This gem unions a server-side ActiveModel password strength validation plugin with a client-side password strength estimation

Validate against blacklist of words

Validates mexican RFC and test it with matchers in a simple way.