SenseBrowser is a HTML + JavaScript based (jQuery UI widget) filebrowser, with a simple idea: make your media accessible for your end users.
SenseBrowser ships with integration support for CKEditor and TinyMCE built-in. Custom implementations are easy to write.
Check out the demos at http://www.sensebrowser.org/demos or in the demos directory of this package.
SenseBrowser is dual licensed under GPLv3 or MIT Licenses.