OneFileCMS is a flat, lightweight, one file CMS (Content Management System) entirely contained in an easy-to-implement, highly customizable, database-less PHP script. It comes with a code editor and all the basic necessities of an FTP application, allowing you to maintain a whole website completely in-browser without any external programs.
OneFileCMS requires your website to be hosted on UNIX/Linux machine with Apache, PHP5 and ability to change file permission. OneFileCMS is 100% re-brandable; CSS and images are externally hosted CSS but you can easily move them to your own server for customization.
Developed by Tommy; OneFileCMS is available for download under Creative Commons Attribution Non-Commercial ShareAlike License. You can find further information, demo & download on OneFileCMS Website.
Heads up: Version 1.1 was released over the weekend. Thanks for the plug, guys!