ramp-model is a web-based model representation app. It provides WYSIWYG platform for bootstraping the data architecture of your next awesome app then gracefully provides you with the next step.

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

A wrapper for jHtmlArea, a TextArea Wysiwyg editor

Redactor WYSIWYG Editor Integration for ActiveAdmin resources.

Imparavi wysiwyg editor for Rails 3.1+

Manages the delivery of mailable items. Handles contacts, mailing lists, bounces, unsubscribe, opt-in, etc. Also available with a newsletter manager (including newsletter designs and elements management, wysiwyg newsletter editor, and newsletter archive) as well as user access control as part of the iReach gem.

ueditor is a WYSIWYG editor to be used inside web pages

ueditor for rails 3 and rails 4, it is a good wysiwyg html editor

Quill is a free, open source WYSIWYG editor built for the modern web. With its modular architecture and expressive API, it is completely customizable to fit any need. Check: 'https://github.com/adnanmirza1/quill-js-rails-adnan' for documentation

Adds a WYSIWYG editor to the product description field in admin

gem to use WYSIWYG editor for rails user

Provides WYSIWYG editor Elrte for Rails

Character WYSIWYG editor + Redactor.js

TinyMCE Hammer makes its easy to use the TinyMCE WYSIWYG editor inside a Ruby On Rails (3+) application.

This is a fork of the wonderful Mercury Rails WYSIWYG editor, modified very slightly for use with DSC's Kit Community and Content Management System. All credit for this Gem goes to the original author, Jeremy Jackson

This gem integrates the WYSIWYG JavaScript editor MediumEditor in Scrivito UI

Provides a front end for editing content in a contextual way with WYSIWYG editing

Liquidice (Liquid-I-See) - enables the use of Liquid templates with WYSIWYG editor output by transforming the output to a valid Liquid template

A wysiwyg page editor allowing advanced layouts of pages, with a simple interface

Email newsletter templating and management system which allows a designer to develop templates and elements that are email-friendly and allows a user to create newsletters without html/css knowledge utilizing a wysiwyg interface. Also available with the mail manager (including contact and mailing list management, double opt-in mailing list sign up, mailer, and bounce processing) and user access as the iReach gem.