Description of InvisibleStandards.

Invitable

If you have a model (User, Account, etc..) and you only want invited people to be allowed creating those resource. Good example is while in beta, invite only account creation.

A Light weight invitation system for Ruby on Rails.

Rails Engine for single-entry invoicing.

invoice is created.

This is a framework for generating and displaying invoices (ideal for commercial Rails apps). It allows for flexible business logic; provides tools for tax handling, commission calculation etc. It aims to be both developer-friendly and accountant-friendly.

An XML-RPC Client for the API of INWX.

API access to Inxmail

Samuel Williams' engines plugin.

Easily create customizable CRUD based controllers with Information Oriented Representation of Data

Creates a Rails 3 app

Block your unwanted visitors.

iPhone specific HTML tags helper

This gem allows ActiveRecord models to generate, validate, and clear OTP codes with an expiration time.

IpToCountry is a simple rails tool to determine the origin (ISO country code or country name) of an IP address. The gem uses data from GeoLite by MaxMind.

Read the IP Address of a visitor to your website and tweet it.

MVC based Math, Logic Captcha

A Rails kernel for Jupyter frontends (e.g. notebook). Try it at try.jupyter.org.

Combines the 'newsletter' and 'mail_manager' gems with viable admin, login and navigation.