Compatibility

This website contains links to software which is either no longer maintained or will be supported only until the end of 2019 (CKFinder 2).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

Browser name
OS
Windows Mac Linux
Internet Explorer 5.5+ YES N/A N/A
Firefox 1.5+ YES YES YES
Safari 3.0+ YES YES N/A
Opera 9.5+ YES YES YES
Netscape 7.1+ YES YES YES
Camino 1.0+ N/A YES N/A