Best Free Rich-Text Editors

Rich-text editors are web components that allow users to edit and enter text within a web browser.
There are many rich-text editors out there.  Here I listed best rich editor which you can use in your project.

TinyMCE

TinyMCE is an open source rich-text editor. As indicated by the name, TinyMCE is lightweight but highly customizable through an intuitive API.TinyMCE is very easy to integrate into other Content Management Systems.

Demo

FCK Editor

FCKeditor is another wildly popular open source online rich-text editor. It has a “Word clean-up” feature that automatically detects and cleans up text that’s copied from Microsoft Word documents. It has one of the best HTML table editing and creation features, making it very easy for users to create and edit tables for displaying data. It's lightweight and doesn't require any kind of installation on the client computer.
Demo

NicEdit

NicEdit is lightweight, no-fuss cross-platform rich-text editor that emphasizes user-friendliness and simplicity over barraging users with too many features.
Demo

Yahoo YUI Rich Text Editor

The Rich Text Editor is a UI control that replaces a standard HTML textarea; it allows for the rich formatting of text content, including common structural treatments like lists, formatting treatments like bold and italic text, and drag-and-drop inclusion and sizing of images. The YUI Library Rich Text Editor also has excellent mobile device support, making it a great web-accessible rich-text editing solution. The Rich Text Editor's toolbar is extensible via a plugin architecture so that advanced implementations can achieve a high degree of customization.
Demo

WYMEditor

WYMeditor is a web-based HTML editor that emphasizes the use of standards-compliant markup. WYMeditor's main concept is to leave details of the document's visual layout, and to concentrate on its structure and meaning, while trying to give the user as much comfort as possible.
Demo

BXE

BXE is an XML-based WYSIWYG editor that allows you to change an entire web page.
Demo