ActionFlow provides a simple way to model multi-step processes such as wizards, sign-up flows, checkout processes and the like in Rails. It allows sequences to be easily composed and reordered, as well as letting you alter the behaviour and appearance of pages based on which flow they have been accessed through.

ProfileWizard is a rails engine that lets you easily plug profile completion wizard into your app, not worrying much about adding required profile fields to your schema.

Oncilla project wizard for CMC EPFL course

An small library to create wizard like views controllers

Multi-Step is a Rails engine for easily creating multi step forms (i.e. form wizard)

A Rails gem for managing the states of a model by defining wizard steps.

Create wizards from any model in three steps. Slightly tweaked version of jeffp's gem to fix a deprecated method error'

Bowties is a base Rails project that you can upgrade. It is used by Wizard Development to get a jump start on a working app.

Projects generator...

Ruby form wizard, not coupled to any specific framework

This gem has methods to delete keys from a nested hash even from arrays, and to set value of a specific key in entire hash and to rename a key in the entire hash.

Draíodóir lets you take a regular HTML5 page, and turn it into a multi-step wizard.

Wizard controller provides a base class (Inheriting from ActionController::Base) that provides a DSL for quickly making Wizards.

Create Rails Multi-Step Wizards instantly

A Rails plugin to make creating a wizard easy and with a lot less code

A Rails plugin that allows validation on partially completed Active Record models (useful in wizards that incrementally build a model).