Database Manager is a Web-based interface for managing files on a remote server. It can list, create, edit, copy, rename, delete, and change the permissions on files, and it can create, rename, and remove directories. It allows you to upload up to 5 files at once, find and replace text within certain file types in a directory, password protect a directory with .htaccess/.htpasswd/.htgroup protection, and track how much space the site is taking up. There is a facility for managing error documents for 401, 403, 404, and 500 errors, and it also features an easy-to-use interface for adding users, changing existing users passwords, and removing users.
DBMEdit is a web-based DBM database editor (in Perl 5). If you use DBM files and don't have a simple way to edit them, you'll want this. It treats each element in the DBM as several fields joined by a delimiter, in effect supporting multiple columns within the single-column DBM format. DBMEdit displays your DBM database as a table, and provides auto-sized forms to add or edit records. Multi- user access is safe.
Dead Link Check (DLC) is a Perl script designed to find information on validity of HTTP references. The script may use/generate a cache file for avoiding redoing network requests if the user wants to check added entries. The script works by reading entries from a file (or a list of links from the command line) and output results in file(s) (or STDOUT). DLC was created as an extension to Public Bookmark Generator (PBM), but can be used on its own.
dolt is a cross platform HTML preprocessor, which replaces specially formatted HTML comments with the contents of another file. It works much the same way as SSI, but without the server requirements, as files are processed before they are uploaded to a Web server. For example, it allows you to update a menu on every page by changing one file. This gives you some of the benefits of frames without any of the problems.
Drupal is a modular content management system, forum, blogging and community engine. It is database driven and can be used with MySQL, MariaDB, PostgreSQL, and SQLite. Its features include (but are not limited to) discussion forums, Web-based administration, theme support, a submission queue, content rating, content versioning, taxonomy support, user management with a fine-grained permission system based on user roles (groups), error logging, support for content syndication, locale support, and much more. It is considered to be an excellent platform for developers due to its clean code and extensibility, and it can also be used as a Web application framework.