Compatibility and System Requirements

This website contains links to software which is either no longer maintained or will be supported only until the end of 2019 (CKFinder 2).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.

CKFinder is a "web application". It means that it's made to run inside web browsers, making it easy to deploy and to use in any computer.

Currently, the following browsers are required to CKFinder to run:

  • Internet Explorer 5.5+
  • Firefox 1.5+
  • Opera 9.5+ (CKFinder 1.1)
  • Safari 3+

Some features are dependent of your browser settings. By default, it should be ready for CKFinder, but if you are experiencing problems with the Context Menu or your Settings are not being saved, be sure that your browser is configured to "allow scripts to replace context menus" ("allow scripts to receive right clicks") and that you have "cookies support enabled".


Please contact your system administrator if you have any doubt.

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