wysihtml是一个可扩展基于HTML5技术的开源富文本编辑器。这是一个独立的JS库，不需要类似 jQuery的框架支持。

示例

• Project page with simple demo: http://wysihtml.com
• Minimal demo: http://voog.github.com/wysihtml/examples/simple.html
• Advanced demo: http://voog.github.com/wysihtml/examples/advanced.html
• Editable GitHub page: http://voog.github.com/wysihtml
• Or try it on a working app: http://voog.com

特性

• Auto linking of urls as-you-type.
• Generates valid and semantic HTML5 markup (no <font> tags).
• Can use class-names instead of inline styles.
• Unifies line-break handling across browsers (hitting enter will create <br> instead of <p> or <div>).
• Auto-parses content inserted via copy & paste (from Word, Powerpoint, PDF, other web pages, etc.).
• Converts invalid or unknown html tags into valid/similar tags.
• Source code view for users with HTML skills.
• Uses sandboxed iframes in order to prevent identity theft through XSS.
• Editor inherits styles and attributes (placeholder, autofocus, etc.) from original textarea (you only have to style one element).
• Speech-input for Chrome.

Extended features not present in xing/wysihtml5:

• Can be used without iframe sandbox when initiated on <div> instead of <textarea>.
• Blocking of image drag drop in editable is removed.
• Table insertion management and cell merging commands.
• Improved parser with options to: unwrap tag instead of remove, keep defined styles, complex object type definitions for allowing elements.
• Ability to add uneditable area inside editor text flow (useful when building modules like video tools, advanced image editor etc).
• Improved formatblock handling.
• Ability for user to remove formating with only collapsed caret without having to select exactly whole text.
• Improved speed.
• Anchor creting and removing logic changed to more universal.
• Default build is without internal toolbar functions and build with -toolbar suffix contains default toolbar functions.

Browser Support

The rich text editing interface is supported in IE8+, FF 29+, Safari 4+, Safari on iOS 5+, Opera 12+ and Chrome.Graceful Degradation: Users with other browsers will see the textarea and are still able to write plain HTML by themselves.

项目主页：http://www.open-open.com/lib/view/home/1419219725703