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

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

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.

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