Admin Tools is a true Swiss Army knife for your site. Our freely available Admin Tools Core will detect, notify you about new Joomla! releases, fix your files' and directories' permissions, protect your administrator directory with a password, change your database prefix, migrate links pointing to your old domain on-the-fly and perform database maintenance, all with a single click.
Written and maintained by the same developer as Akeeba Backup and the Joomla! updater component of Joomla! 2.5.4 and later.
Note: a commercial edition (Admin Tools Professional) with extra security-oriented features is also available from our site for a fee. This listing is about the free version, Admin Tools Core.
Note 2: The software is free of charge, its support is not. You need a subscription to request support. However, its documentation, the troubleshooting wizard and searching the public tickets is free.