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This website contains links to software which is either no longer maintained or will be supported only until the end of 2019 (CKFinder 2).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

Browsers

CKFinder is compatible with the following browsers, with their default settings:

  • Internet Explorer 5.5+
  • Firefox 1.5+
  • Safari 3+
  • Opera 9.5+

Note for Opera: By default Opera is configured to not allow scripts to receive right click events. The context menu will not work because of this. To correct it, just enable this option in the Opera settings: Tools (Menu) > Preferences... > Advanced (Tab) > Content (Left List) > JavaScript Options... > Allow script to receive right clicks (must be checked).

The asp version of CKFinder has been designed to run in IIS 5 or 6, without the need to any extra component for its basic functionality.

In order to create thumbnails or restrict image dimensions one of these items should be available:

  • Asp.net 1.1 or 2.0. If the .Net framework is available in the server and both the asp and asp.net code have access to the temp folder then it will be used automatically.
  • AspJpeg component from Persits Software Inc.
  • ASPImage 2 component from ServerObjects
  • Microsoft Office Web Components. It will provide very low quality thumbnails.