Those of you who have installed WordPress manually on your server have probably spent some time optimizing your WP Config file. You can modify memory size, security, database settings, and more in this file. Thanks to WP Config File Editor, you can make changes to this file, even if you are not an experienced WordPress user.
WP Config File Editor allows you to change cache, memory, cron, database, cookies, updates and other settings. You can disable the plugin/theme editor, force SSL use, disallow unfiltered HTML, and change access list in the backend. The plugin is compatible with multi-site portals too.
The WP Config File Editor plugin has useful settings for developers. It is very user-friendly, but you should do your homework before making drastic changes to your config file. This is a free script.