Design and Architecture

This website contains links to software which is either no longer maintained or will be supported only until the end of 2019 (CKFinder 2). For the latest documentation about current CKSource projects, including software like CKEditor 4/CKEditor 5, CKFinder 3, Cloud Services, Letters, Accessibility Checker, please visit the new documentation website.

If you look for an information about very old versions of CKEditor, FCKeditor and CKFinder check also the CKEditor forum, which was closed in 2015. If not, please head to StackOverflow for support.

These pages summarize the ideas, concepts, motivations and specifications for the development of CKEditor 3.0 (code name V3). This is the repository into which converge the results of thoughts and discussions placed around our project. It's a place in tranformation, and you are invited to participate, making it move forward.

The Project

Concepts and Macro Features


The User Interface

Editing Features

  • Undo and Redo
  • Cut, Copy and Paste
  • Bold, Italic and Underline
  • Lists
  • Links
  • Images
  • Block Formatting
  • Styles
  • ...

Other Features

  • File Browser
  • Spell Checker
  • Debugging -- internal debugger (like FCKDebug)


  • Default XHTML
  • HTML
  • Other Formats -- non HTML


  • Configuration
  • Skins
  • Plugins



  • Release Building (CKReleaser)
  • Installation
  • Compression and Minification
  • Customized Distributions
  • Assets Server / CDN
  • Proxies, Caches and Updates
  • Domain Relaxing
This page was last edited on 17 February 2010, at 14:06.